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Home My WebLink AboutAPA2557FINAL REPORT COMPUTERIZED GEOGRAPHIC INFO~~TION SYSTEM TALKEETNA AND BELUGA SUBBASINS SUSITNA RIVER BASIN, ALASKA ESRI 380 New York Street Redlands, California 92373 Prepared for: FINAL REPORT COMPUTERIZED GEOGRAPHIC INFORMATION SYSTEM TALKEETNA AND BELUGA SUBBASINS SUSITNA RIVER BASIN, ALASKA U.S.D.A. Soil Conservation Service U.S.D.A. Forest Service Alaska Department of Natural Resources Prepared by: Environmental Systems Research Institute 380 New York Street Redlands, California 92373 November 1982 Table of Contents Introduction I. Data Collection and Classification A. Introduction B. Methodology C. Data Structure and Classification Map No. 1 Map No. 2 Map No. 3 Map No. 4 Integrated Terrain Units Surface Hydrology Points and Linear Features Land Status II. Data Mapping A. Introduction B. Methodology C. Manuscript Mapping Map No. 1 Integrated Terrain Units Map No. 2 Surface Hydrology Map No. 3 Points and Linear Map No. 4 Land Status III. Data Automation A. Introduction B. Hethodology C. Interpre-ted and Derived Data Interpretive Matrices Distance Searches IV. Computer Modeling A. Introduction B. Methodology C. Model Outlines Soil Drainage Features Soil Limitations for Dwellings Range Resources Specific Slope from Soils Fares t Resources Ground,.;rater Availability Economic Agriculture/Forestry Important Farmland Important Grazing Lands (Potential) -Talkeetna Subbasin i I-1 I-2 I-8 I-10 I-10 I-10 I-ll II-1 II-3 II-9 II-9 II-10 II-10 II-11 III-1 III-3 III-8 III-8 III-10 IV-1 IV-3 IV-7 IV-9 IV-10 IV-11 IV-14 IV-15 IV-18 IV-20 IV-23 IV-24 Table of Contents, continued IV. Computer Modeling, continued Land Capability for Accessed Large Lot Residential Development -Talkeetna Subbasin Land Capability for Moderate/High Density Residential Development Land Capability for Low Density Remote Residential Development Erosion Potential Moose Habitat General Habitat Wetlands Matrix -Talkeetna Subbasin Wetlands II -Talkeetna Subbasin Wetlands Matrix -Beluga SUbbasin Road Suitability -Talkeetna Subbasin Colos -Talkeetna Subbasin Road Suitability -Beluga Subbasin V. Computer Mapping A. Introduction B. Methodology C. Legends and Statistics Legends -Talkeetna Subbasin Soil Drainage Soil Limitations for Dwellings Range Resources Slope Forest Resources Important Farmland Important Grazing Lands (Potential) Groundwater Availability Economic Agriculture/Forestry Capability for Large Lot Residential Development Capability for Moderate/High Density Residential Development Capability for Lmv Density Remote Residential Development Erosion Hoose Habitat General Habitat I General Habitat II ~.Jetlands I Wetlands II Road Suitability Co los IV-25 IV-28 IV-31 IV-35 IV-36 IV-38 IV-41 IV-46 IV-47 IV-51 IV-55 IV-56 V-1 V-2 V-6 V-8 V-10 V-11 V-12 V-13 V-14 V-15 V-16 V-17 V-18 V-19 V-20 V-21 V-22 V-23 V-25 V-26 V-28 V-30 V-31 Table of Contents, continued V. Computer ~fupping, continued Legends -Beluga Subbasin Soil Drainage Soil Limitations for Dwellings Range Resources Slope Forest Resources Important Farmland Groundwater Availability Economic Agriculture/Forestry Capability for Moderate/High Density Residential Development Capability for Low Density Remote Residential Development Erosion Moose Habitat General Habitat I General Habitat II Wetlands I Road Suitability V-32 V-33 V-34 V-35 V-36 V-37 V-38 V-39 V-40 V-41 V-42 V-43 V-44 V-46 V-47 V-49 Appendix Al. Data Classification and Coding -Talkeetna Subbasin A-1-1 Appendix A2. Data Classification and Coding -Beluga Subbasin A-2-1 Appendix B. Data Code Descriptions B-1-1 Appendix C. Data Sources and Mapping Methodology C-1 Appendix Dl. Grid Multi-Variable File -Talkeetna Subbasin D-1 Appendix D2. Grid Multi-Variable File -Beluga Subbasin D-2 Appendix El. Interpretive·Soil Matrices E-1 Appendix E2. Interpretive Soil }futrices E-2 INTRODUCTION Environmental Systems Research Institute (ESRI) has developed an Automated Geographic Information System (GIS) and conducted a systematic land capability/suitability analysis for the Susitna River Basin in south central Alaska. This effort was sponsored by a number of agencies, including the National Aeronautics and Space Administration (NASA), the U.S. Department of Agriculture (USDA) and the Alaska State Department of Natural Resources (ADNR). It was carried out under a number of contracts. The first contract, which provided coverage for the Willow Subbasin and was described in detail in a final report entitled, Computerized Geographic Information System: Willow Subbasin, Susitna Basin, Alaska (February 1981), was administered by the NASA Ames Research Center. Subsequent efforts, most of which are described in this report, have been carried out under a number of different contracts with the U.S. Soil Conservation Service, the u.s. Forest Service and the Alaska State Department of Natural Resources. The work for the Talkeetna Subbasin was completed under two separate contracts with the USDA Soil Conservation Service. Contract No. 53-0436-9-39 provided coverage for the lower portion of the subbasin. Contract No. 53-0436-0-46 provided coverage for the upper portion. The work for the Beluga subbasin was completed under contracts with the Alaska Department of Natural Resources and the USDA Forest Service. Coverage for the central portion of the subbasin was provided through ADNR Contract No. GSC-360. Coverge for the upper and lower portions was provided through USDA Forest Service Contract No. 53-0109-1-00080. Mapping of the upland margins of the Susitna Basin was funded under a number of other contracts and purchase order. The maps- i produced for an area of some 3,700 square miles in the Upper Susitna Basin were automated. The results of this latter effort, which was conducted at a different level of spatial resolution, are outlined in a separate report. ~~ In many respects, the creation of the automated GIS for the Susitna River Basin represents the culmination of a resource inventory and analysis effort which commenced several years ago and which, among other things, involved the detailed mapping and field survey of soil and forest resources by the USDA Soil Conservation Service and Forest Service. These and other data were rectified, cross-compared, and composited by ESRI in the pre-automation process. Related areal phenomena such as geology, landform, slope, soils, and vegetatio~ were cross-compared and composited in a single map overlay by a process termed, "Integrated Terrain Unit Mcipping". This p:rocess imparted a higher level of spatial resolution, accuracy, and consistency to the mapped data than was generally inherent in the diverse source materials. The terrain unit map was composed of individual units, each of which encompassed a set of homogeneous characteristics. The numerous data planes represented on the map were segregated and mapped as independent phenomena after the .process of automation was completed. It is importartt to note that the pre-automation compositing and integration process provides for a high level of technical and cost efficiency in the data automation effort. Once automated, all of the mapped data included in the system were put in an easily retrievable form for use by a wide range of agencies in long-term land inventory, planing, and management functions. In order to provide for the uniform analysis and display of data for each of the subbasins, ESRI staff merged the multiple data files created under four separate contracts into two ii discrete and coherent sets of files: one for the Talkeetna Subbasin and the other for the Beluga Subbasin. Separate sets of files were created for the Willow Subbasin and the Upper Sasitna Basin. In cooperation with State and Federal agency staff, ESRI subsequently employed the data bases in a systematic assessment of environmental opportunities and constraints in the subbasins and in a structured evaluation of the capability and suitability of the land for select uses. The development and application of these data bases represents one aspect of a transfer of GIS technology from ESRI to State and Federal agencies in Alaska. It provided an opportunity for professional and technical personnel from a number of these agencies to participate in all phases of data base design, implementation, and application. It also resulted in the creation of a number of unified data bases which have been installed on the ADNR computer facility in Anchorage and which, in the future, can serve both as the superstructure for the efficient storage and retrieval of environmental data for the area and as the context for its legible and systematic application to land planning and management functions. The Susitna River Basin comprises an area of approximately 10,000 square miles. The regional map on the following page illustrates the general location and configuration of the Susitna Basin as well as the major subbasins within it. The Willow Subbasin, comprising an area of approximately 1,600 square miles is located in the Southeast. The Talkeetna Subbasin, comprising an area of some 3,200 square miles is located in the- center. The Beluga Subbasin, extending over approximately 2,300 square miles, is located in the West. As indicated previously, the Talkeetna and iii I Willow Subb,.ln I Upp"· Cont"l & low" Bolugo .. , "' ., ,. .> 1, .. ' ., ... Upper Susitna ".., < , "' 1 • " 1,2,3,5,6,8 Corresponding Susltna Basin Project Numbers 0 50 Miles l:l MT MCKINLEY Willow, Talkeetna, Beluga, Susitna Subbasins SUSITNA BASIN, ALASKA o;"~ I i i 0~; Beluga Subbasins were each mapped under two separate contracts. The boundaries of these contract areas, as well as the ESRI Susitna Basin project number~ are illustrated on the accompanying map. The location of the area mapped and automated as part of the effort in Upper Susitna is also shown. In all of the lowland portions of the Susitna Basin, detailed soil, vegetation, and land use investigations were conducted under a cooperative agreement between State and Federal Agencies. In the case of both the s'oils and vegetation surveys, the units delineated on aerial photographs were sampled and described through detailed field investigations. These data, as well as other more generalized data, were provided to ESRI for use in creating the GIS for the Basin. The diverse collateral data which existed at scales ranging from 1:15,000 to 1:250,000 were re-scaled to a consistent scale, checked against aerial imagery, and rectified to a standard planimetric base as part of the process of GIS development. ESRI staff also ' used aerial imagery and topographic data to make original interpretations and delineations of other environmental phenomena, including stream and road networks, watershed boundaries, and· average slope gradients. The first step in the development of the GIS was the creation of a set of stable base mylar basemaps of the region. These basemaps, corresponding to the map module structure shown on the Talkeetna Subbasin and Beluga Subbasin Index Maps on the follmving pages, were created at a scale of 1:63,360. An Index Map for the Willow Subbasin is included at the end of the series for reference. All data variables were scaled and rectified to the 1:63,360 basemap series. Approximatey fifteen general types of data and thirty-five specific classes of data were mapped for automation. All data were mapped in a form providing v • I I I I I I I I I I 1 -, I I 82 "I , (.I ) ) I ,-"' vi . . .. I . ·r ___ ...:.J 86 INDEX TO 15' USGS TOPOGRAPHICAL MAPS TALKEETNA SUBBASIN, SUSITNA BASIN, ALASKA C4 ; .. r J vii COO< &lfLIT INDEX TO 15' USGS TOPOGRAPHlCAL MAPS BELUGA SUBBASIN, SUSITNA BASIN, ALASKA A3 \ 'J (1 ·~,.. \ {jm. \ \-82. --- COOK INLET p:::j v A1 AS ....... ...... -.... ' \ "--...., ' 06 C6 87 INDEX TO 15' USGS TOPOGRAPHICAL MAPS WILLOW SU88ASIN,SUSITNA 8ASIN,ALASKA s 0 -=-=:--=! . t ....... ------ ----------~--------~----01 viii optimal representation of their natural configuration. Areal phenomena, such .as soil and vegetation units were mapped as polygons. Terrain unit polygons had a minimum resolution ranging from 2 acres for the Talkeetna Subbasin to 5 acres for the Beluga Subbasin. Areal units smaller in size were not captured as discrete units. Linear phenomena such as roads and streams were mapped as lines. Small scale phenomena such as excavation sites were mapped as points. Related data variables were composited on the same map sheet as re-scaled boundaries were being rectified and redrawn. A number of manually drafted mylar sheets, termed map manuscripts, were drawn for each of the 36 map modules comprising the Talkeetna and Beluga Subbasins. These manuscripts and the data types which they encompass are outlined below: MANUSCRIPT Ill -INTEGRATED TERRAIN UNIT MAP Slope Landform Surficial Geology Bedrock Geology Economic Geology Geologic Hazards Soil Land Use Vegetation ~~SCRIPT #2 -SURFACE HYDROLOGY MAP Stream Courses Watersheds MANUSCRIPT #3 -POINTS AND LINEAR FEATURES MAP ix ... }~SCRIPT #4 #3A Natural Lines #3B Cultural Points and Lines LAND STATUS MAP Congressional Townships Ownership All of the manuscripts were manually delineated and subsequently automated at a scale of 1:63,360. The Integrated Terrain Unit Maps were created through a process which involved spatial integration, as well as compositing. In the preparation of these maps, interrelated uata variables were cross-compared, as well as checked against the imagery and basemaps. Where appropriate, boundary descrepancies· were reconciled. In effect, the cartographic inaccuracies inherent in the collateral information because of varying scales, projections, spatial resolutions, and final graphic liberties were corrected and resolved in the process of comparison to the imagery, cross-comparison to related data variables, and rectification to the planimetrically accurate basemap series. These manuscripts, like the others, were comprised of a series of consecutively numbered units delineated on a mylar sheet registered to the basemap modules. They were accompanied by code sheets which expressed the attributes of ea~h unit by means of numeric code. The mapped data were automated by a process of x,y coordinate digitizing. The automation procedures provided for the accurate capture of the natural form of the mapped data. The computerized data files, composed of polygons, line segments, and points, were used to create a number of plotter drawn maps of the area as well as to create a parallel set of data files in a grid format. A uniform ten acre grid was laid atop each of the original data X files for the Talkeetna and Beluga subbasins, and the data values were transferred into and recorded by individual grid cell. These grid cell data banks, ultimately formatted as two grid multi-variable files, were used to produce grid map atlases of the subbasins which displayed both basic and interpreted environmental phenomena. It is important to note that once map data existed in a computerized form, they could be accurately displayed at a variety of different scales. Most of the final products of the study were produced at a scale of 1:63,360. The following computer maps which illustrate some of the basic information coded into the GIS were produced for the Talkeetna and Beluga Subbasins: COMPUTER MAPS BASIC AND INTERPRETED ENVIRONMENTAL CONDITIONS Pen Plotter Maps Talkeetna Beluga Vegetation X X Line Printer Maps Soil Drainage X X Soil Limitations for Dwellings X X Range Resources X X Soil Slope X X Forest Resources X X Important Farmland X X Important Grazing Lands X The computerized data bank for each of the subbasins was subsequently used to evaluate and assess environmental conditions in relation to certain potential uses. A series of theoretical models were constructed to assess natural opportunities and constraints and to evaluate the capability and suitability of land for select uses. The overall format for the analyses xi generally followed that developed as part of the Willow effort, wherein ESRI staff worked with representatives from select State and Federal agencies in structuring the ove~~ll flow of the analyses. Conceptual models designed by the appropriate individuals and agencies were ultimately provided to ESRI. Participating agencies included Alaska Department of Natural·Resurces, Alaska Depiutme~t of Fish and Game, U.S. Soil Conservation Service, U.S. Forest Service, and U.S. Fish and Wildlife Service. The models, comprised of selected, prioritized and ranked factors, were programmed by ESRI staff. Their application to the computerized data resulted in the sequential overlay of each of the select variables and the-automatic calculation of mathematical values for each segment of the study area. In general, each of the models underwent several iterations before being finalized. The map output from each model was evaluated by agency staff in the field. Where appropriate, the models were modified. It is important to note that the data bases which have been developed in the course of these efforts have been installed on a computer facility in Alaska and that additional modeling and mapping applications by the appropriate agencies can be made. The following computer maps were produced. They illustrate the results of the models which were developed. COMPUTER MAPS MODELED ENVIRONMENTAL CONDITIONS Settlement Capability for Access Large Lot Residential Development Capability for Moderate/High Talkeetna X xii Beluga Same Model Format Density Residential Development Capability for Low Density Remote Residential Development Other Groundwater Availability Economic Agriculture/Forestry Erosion Potential Moose Habitat General Habitat I General Habitat II Wetlands I Wetlands II Road Suitability Colas X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X This report is designed to provide an overview of the methodology and results of the study. It is accompanied by a series of appendices which enumerate and document the data types, data sources, mapping methodology, and final computer data files. The report is divided into five chapters, one dealing with each major phase of the effort. Four appendices are used to supplement and complement the basic volume. The.se are subdivided, where appropriate, in order to account to some differences in the data banks and maps among the contracted efforts. The first chapter, entitled Data Collection and Classification, describes the general procedures employed to collect the data, and structure a conceptual framework for interpretation, mapping, automation, and analysis. The essential focus of the chapter is an outline of the form in which related data variables are composited on the same map and the general way in which data are classified. The classification scheme is of essential importance with respect to all potential applications of the system. It sets both the upper and lower limits of the potential applications of the system~ The xiii second chapter, entitled Data Mapping, describes the general sources for the interpretation and mapping of data as well as the processes used to composite, and, in some cases, integrate data onto map manuscripts for automation. The third chapter, entitled Data Automation, deals with the processes used to accurately translate the spatial configuration and numeric codes of mapped data into a machine readable form. In addition, it includes outlines and descriptions of data interpretations and derivations which were made an integral part of the data bank and which, in effect, supplement and complement the data types and classes outlined in Chapter I. The fourth chapter, entitled Computer Modeling, deals with theoretical models which were developed to assess natural opportunities and constraints and to evaluate land capability and suitability in the region. An outline is provided for each of the models. The fifth chapter, entitled Computer Mapping, provides an outline and description of all of the computer maps which were developed for the Talkeetna and Beluga Subbasins. It is focused on a series of legend sheets which identify the data displayed on each of the maps comprising the ESRI atlas· of the region. It stands somewhat in parallel with Chapter I, the former outlining the essential components of the incipient data bank, the latter the visible record of it and its application. xiv Chapter I Data Collection and Classification Introduction Methodology Data Structure and Classification }fap No. 1 Integrated Terrain Units Map No. 2 Surface Hydrology Map No. 3 Points and Linear Features Map No. 4 Land Status I. DATA COLLECTION A. Introduction At the outset of this study, the specific data necessary for the desired analyses were determined. The collection of data was structured by this determination. The first step in the process required a decision as to the general types of data needed. The analyses to be performed for the River Basin Planning Study and other projected efforts required information on such diverse environmental considerations as geology, landform, soils, vegetation, hydrology, land use, land ownership, roads, infrastructure and administrative entities. Data were then collected for each of these general considerations. These data were in two forms: collateral data -previously mapped ~r delineated information which, with necessary rescaling and spatial rectification and adjustment, was utilized directly for mapping; and interpreted data -photointerpreted from a variety of sources by the study team. The third major step in the data collection process was the development of a data classification system which wuld provide for consistent interpretations and designations for the data. This system subdivided each of the general types of data into specific variables and in turn classified the information into specific levels or categories. For example, landforms were divided into eight general classes and forty-one specific types. Finally, a set of basemaps were created which were used for the rectification and mapping of all of the requisite data. I-1 B. Methodology The initial determination of data needs guided the data collection effort. Host of the data used in the studies were obtained by ESRI directly from the U.S. Soil Conservation Service, Anchorage and the Alaska Department of Natural Resources. Prior to the development of the Willow data base, ESRI staff specialists spent time in Alaska assembling data and conducting a field reconnaissance of the Basin. The latter effort was conducted in order to familiarize the ESRI study team with the general environment of the area, to check the collateral data, and to identify and describe the representative patterns or signatures on the aerial imagery. The staff specialists acquired the topographic maps, color infra-red aerial imagery, detailed soil maps, detailed vegetation maps, land use and recreation maps, landform maps, and a variety of other topical maps and reports which were subsequently used in the interpretation and mapping effort. Once these materials were obtained, inventoried, and reviewed, necessary revisions were made to the original categorization of the data in order to most efficiently capture the data. Four manuscript maps were outlined for compositing and delineating the assembled data. A detailed classification scheme was then developed. It is described in the following section of this chapter. Explanations and descriptions of the collateral and interpreted information used to map each of the data variables are provided in the following chapter and in Appendices A and B. Following the initial phases of data collection, a set of I-2 consistently scaled basemaps of the subbasin were formatted on translucent mylar. United States Geological Survey 15-minute quadrangle maps, at a scale of 1:63,360, were selected as the basemap modules for both subbasins. Twenty-one maps were needed for Talkeetna Subbasin and fifteen maps were needed for Beluga Subbasin. These were printed on frosted Ammonia-Mylar, a stable-base material which does not stretch or shrink appreciably. In order to ensure accurate and consistent registration, four tic marks were placed on each basemap module. Thereafter, every overlay manuscript which was drafted was registered to these tic marks. For Talkeetna Subbasin, two tic identification schemes, one for the Lower Talkeetna Subbasin project, one for the Upper Talkeetna Subbasin project, were used. For Beluga Subbasin, two tic identification schemes, one for the Central Beluga Subbasin study, and one for the Upper and Lower Beluga Subbasin study were also used. On the following pages, the structure of the base maps, the module numbers, the location and numbering of the tics, and their geographic coordinates are identified. I-3 LOWER TALKEETNA SUBBASIN -BASE MAPS/MOD#S/TICS 1 2 3 ~ B-2 B-1 (122) (121) 4 5 6 A-2 A-1 (112) (111) 7, 8 9 10 11 12 13 D-4 D-3 D-2 D-1 (244) (243) (242) (241) 14 15 16 17 18 I C-3 C-2 C-1 (233) (232) (231) 19 20 21: 22 B-2 (222) 23 24 LOHER TALKEETNA TICS -6 1 000,000 Subtracted from Northing TIC LATITUDE, LONGITUDE, NORTHING, EASTING, ZONE SPHEROID ID D M .s D M s METERS METERS NO CODE 1 62 25 0.000 151 0 o.ooo 921996.5 603313.3 5 0 2 62 25 0.000 150 30 0.000 922895.6 629133.2 5 0 3 62 25 0.000 150 0 0.000 923994.6 654947.6 . 5 0 4 62 15 0.000 151 0 o.ooo 903434.7 603887.4 5 0 5 62 15 o.ooo '150 30 0.000 904337.5 629850.9 5 0 6 62 15 0.000 150 0 o.ooo 905441.0 655808.7 5 0 7 62 0 o.ooo 151 20 0.000 875099.5 587292.1 5 0 8 62 0 o.ooo 151 7 30.000 875397.4 598201.5 5 0 9 62 0 0.000 151 0 o.ooo 875592.9 604746.9 5 0 10 62 0 o.oob 150 45 o.ooo 876021.7 617836.7 5 0 11 62 0 0.000 . 150 30 0.000 876501.0 630925.2 5 . Q 12 62 0 0.000 uo 22 30.000 876759.6 637469.0 5 0 13 62 0 0.000 150 0 0.000 877611.0 657098.0 5 0 14 61 45 0.000 151 20 0.000 847255.7 588006.6 5 0 15 61 45 0.000 151 7 30.000 847555.2 599005.4 5 0 16 61 45 0.000 150 45 o.ooo 848183.2 618801.3 5 0 17 61 45 0.000 150 22 30.000 848925.4 638594.4 5 0 18 61 45 o.ooo 150 0 0.000 849781.9 658384.2 5 0 19 61 30 o.ooo 151 7 30.000 819714.1 599t:l07.3 5 0 20 61 30 0.000 150 45 0.000 820345.7 619763.6 5 0 21 61 30 0.000 150 22 30.000 821092.1 639717.2 5 0 22 61 30 0.000 150 0 0.000 821953.4 659667.4 5 0 23 61 15 0.000 150 45 0.000 792509.0 620723.7 5 0 24 61 15 0.000 . 150 22 30.000 793259.6 640837.2 5 0 I-lf UPPER TALKEETNA SUBBASIN -BASE HAPS/HODfiS/TICS 1 2 3 4 5 C-3 C-2 C-1 C-6 (133) (132) (131) (136) 6 7 8 9 10 B-3 B-2 B-1 B-6 (123) (122) (121) (126) -~1 -~12 -13 14 15 16 40 17 A-3 A-6 (113) (116) 18 19 20 21 22 23 24 D-4 D-8 (244) 28. r--(048) • 29 I I 25 26 27 UPPER TALKEETNA. TICS -6,000,000 Subtracted from Northing TIC LATITUDE, LONGITUDE, NORTHING, EASTING, ZONE SPHEROID ID D N .s D M s HETERS METERS NO CODE 1 62 40 0.000 151 30 0.000 949144.8 576841.9 5 0 2 62 40 0.000 151 0 0.000 949839.8 602450.6 5 0 3 62 40 0.000 150 30 0.000 950733.5 628054.7 5 0 4 62 40 0.000 150 0 0.000 951825.8 653653.3 5 0 5 62 40 0.000 149 30 0.000 953116.8 679245.0 5 0 6 62 30 0.000 151 30 0.000 930579.6 577273.4 5 0 7 62 30 o.ooo 151 0 0.000 931277.5 603026.0 5 0 8 62 30 0.000 150 30 0.000 932174.8 628774.0 5 0 9 62 30 o.ooo 150 0 0.000 933271.6 654516~4 5 0 10 62 30 0.000 149 30 0.000 934567.9 680252.1 5 0 11 62 20 0.000 151 0 0.000 912715.5 603600.5 5 0 12 62 20 0.000 150 30 0.000 913616.5 629492.2 5 0 13 62 20 0.000 150 0 0.000 914717.8 655378.3 5 0 14 62 15 0.000 151 30 0.000 902732.6 577919.5 5 0 15 62 15 0.000 151 0 0.000 903434.7 603887.4 5 0 16 62 15 0.000 150 0 0.000 905441.0 655808.7 5 0 17 62 15 0.000 149 30 0.000 906745.1 681759.8 5 0 18 62 0 0.000 151 30 0.000 874886.5 578564.1 5 0 19 62 ·o 0.000 151 15 0.000 875214.5 591655.9 5 0 20 62 0 0.000 151 7 30.000 875397.4 598201.5 5 0 21 62 0 0.000 151 0 0.000 875592.9 604746.9 5 0 22 62 0 0.000 150 0 0.000 877611.0 657098.0 5 0 23 62 0 0.000 149 40 0.000 878463.2 674542.9 5 0 24 62 0 0.000 149 30 0.000 878922.9 683264.1 5 ·o 25 61 45 0.000 151 30 .0.000 847041.4 579207.1 5 0 26 61 45 0.000 151 15 0.000 847371.3 592406:2 5 0 27 61 45 0.000 151 7 30.000 847555.2 599005.4 5 0 28 61 55 o.ooo 150 0 0.000 868334.6 657527.1 5 0 29 61 55 0.000 149 40 0.000 869188,4 675019.6 5 0 30 62 15 0.000 149 40 0.000 906288.1 673110.3 5 0 l-5 2 C-4 (134) UPPER AND LOlffiR BELUGA SUBBASIN -BASEMAPS/MOD/.IS/TICS 3 4 B-4 (124) 5 .F. 7 A-4 A-3 (114) (113) r:~ 8 9 10 11 D-5 (245) 12 13 14 15 16 17. 18 B-6 B-5 B-4 B-3 (226) (225) (224) (223) 19 20 21 22 23 2 9 A-6 A-5 A-4 A-3 A-2 (216) (215) (214) (213) (212) 24 25 26 27 28 30 BELUGA TICS -6,000,000 Subtracted from Northing TIC LATITUDE, LONGITUDE, NORTHING, EASTING, ZONE SPHEROID ID D l{ s D M s METERS HETERS NO CODE 01 62 45 0.000 152 0 0.000 957932.1 551085.8 5 0 02 62 45 0.000 151 30 o.ooo 958427.5 576625.9 5 0 03 62 45 o.ooo 152 0 o.ooo 930081.1 551517.5 5 0 04 62 30 0.000 151 30 0.000 930579.6 577273.4 5 0 05 62 15 o.ooo 152 0 0.000 902231. 1 551948.2 5 0 ·06 62 15 o.ooo 151 30 0.000 902732.6 577919.5 5 0 07 62 15 o.ooo 151 0 0.000 903434.7 603887.4 5 0 08 62 0 0.000 152 0 o.ooo 874382.0 552377.9 5 0 09 62 0 0.000 151 52 30.000 874489.2 558924.7 5 0 10 62 0 o.ooo 151 30 0.000 874886.5 578564.1 5 0 11 62 0 o.ooo 151 0 o.ooo 875592.9 604746.9 5 0 12 61 45 0.000 151 52 30.000 846641.8 559407.0 5 0 13 61 45 0.000 151 30 0.000 847041.4 579207.1 5 0 14 61 30 0.000 152 15 o.ooo 818508.3 539926.2 5 0 15 61 30 0.000 151 52 30.000 818795.4 559888.1 5 0 16 61 30 0.000 151 30 o.ooo 819197.2 579848.6 5 0 17 61 30 o.ooo 151 7 30.000 819714.1 599807.3 5 0 18 61 30 o.ooo 150 45 o.ooo 820345.7 619763.6 5 0 19 61 15 0.000 152 15 0.000 790661.3 540246.2 5 0 20 61 15 0.000 151 52 30.000 790950.0 560368.1 5 0 21 61 15 o.ooo 151 30 o.ooo 791354.2 580488.6 5 0 22 61 15 0.000 151 7 30.000 791873.8 600607.3 5 0 23 61 15 0.000 150 45 0.000 792509.0 620723.7 5 0 24 61 0 o.ooo 152 15 0.000 762815.3 540565.4 5 0 25 61 0 0.000 151 52 30.000 763105.6 560846.9 5 0 26 61 0 0.000 151 30 0.0')0 763512.0 581127.0 5 0 27 61 0 0.000 151 7 30.000 764034.5 601405.4 5 0 28 61 0 0.000 150 45 o.oo,J 764673,2 621681.4 5 o· 29 61 15 o.ooo 150 22 30. OCJC1 793259.6 640837.2 5 0 30 61 0 0.000 150 22 30.000 765428.0 641954.6 5 0 I-6 CEXTRAL BELUGA SUBBASIN -BASE~1APS/MOD#S/TICS . 1 2 3 C-3 C-4 (235) (234) 4 5 6 7 B-3 B-4 . B-3 (225) (224) (223) 8 9 10 11 CENTRAL BELUGA TICS-6,000,000 Subtracted from Northing TIC LATITUDE LONGITUDE NORTHING EASTING ZONE SPHEROID ID D M s D M s HETERS METERS NO CODE 1 61 45 o.ooo 151 52 30.000 846641.8 559407.0 5 0 2 61 45 0.000 151 30 o.ooo 847841.4 579207.1 5 0 3 61 45 0.000 151 7 30.000 847555.2 599005.4 5 0 4 61 30 0.000 151 52 30.000 818795.4 559888.1 5 0 5 61 30 o.ooo 151 30 o.ooo 819197.3 579848.6 5 0 6 61 30 o.ooo 151 7 30.000 819714.1 599807.3 5 0 7 61 30 0.000 150 45 o.ooo 820345.7 619763.6 5 0 8 61 15 o.ooo 151 52 30.000 790950.0 560368.1 5 0 9 61 15 0.000 151 30 o.ooo 791354.2 580488.6 5 0 10 61 15 o.ooo 151 7 30.000 791873.8 600607.3 5 0 11 61 15 o.ooo 150 45 o.ooo 792509.0 620723.7 5 0 I-7 C. Data Structure and Classification As indicated, the definition of data classes for each of the variables in this study was guided by coFsiderations similar to those ~ which guided the selection of the variables themselves. That is, ~he data classification had to consider information critical to the required level of environmental evaluation, and it had to be broad enough to produce legible maps with sufficient detail to be useful. The data selected and classified for inclusion in the geographic information for the Talkeetna and Beluga Subbasins was structured for mapping on four manuscripts. In general, related data variables were identified for mapping on the same manuscript. For example, geology, landform, slope, soils and vegetation were identified for mapping on the same mylar sheet. The four manuscripts were designed as a means of efficiently compositing the broad range of data selected for inclusion in the automated system. It should be noted the.data manuscripts were designed for application atop the module spatial structure of the GIS, that is, four manuscript maps were identified for overlay atop each of their corresponding map modules covering the study area. The four manuscript maps are identified as follows: Map Manuscript No. Map Manuscript Name No. 1 Integrated Terrain Units No. 2 Surface Hydrology No. 3 Points and Linear Features No. 4 Land Status The following outline illustrates the essential nature of the data I-8 structure and classifications employed in the creation of the GIS for the Talkeetna and Beluga Subbasins. A complete enumeration of the classification and codes is provided in Appendices Al (Talkeetna Subbasin) and A2 (Beluga Subbasin) of this report. I-9 TALKEETNA SUBBASIN SUSITNA RIVER/BASIN ALASKA DATA STRUCTURE AND CLASSIFICATION MANUSCRIPT 111 -INTEGRATED TERRAIN illliT HAP SLOPE (7 Classes) 1.AJ.'IDF0&.'1 Physiographic Division (8 Classes) Landform Type (74 Classes) GENERAL GEOLOGY Surficial Geology (4 Ciasses) Bedrock Geology (19 Classes) ECONOMIC GEOLOGY (20 Classes) GEOLOGIC HAZARDS . Geologic Hazards I. (13 Classes) Geologic Hazards II (4 Classes) SOIL (275 Classes) HABITAT -Lower Talkeetna Subbasin Only Habitat I (24 Classes) Habitat II (5 Classes) Habitat III (9 Classes) Habitat IV (14 Classes) Habitat V (2 Classes) LAND USE (67 Classes) VEGETATION (41 Classes) ~~NUSCRIPT #2 -SURFACE HYDROLOGY MAP STREAH Order (8 Classes) Periodicity (2 Classes) .Origin (2 Classes) Discharge Profile (2 Classes) Situation (2 Classes) Condition (2 Classes) Anadromous Streams (6 Classes) WATERSHED Topologic Number (123 Classes) MANUSCRIPT #3 -POINTS AND LINEAR FEATURES MAP NATURAL LINES Escarpment (2 Classes) Fault Lines (4 Classes) CULTURAL LINES Roads/Trails/Infrastructure Network (12 Classes) I-10 CULTURAL POINTS Extractive Sites (7 Classes) MANUSCRIPT #4 -LAND STATUS MAP CONGRESSIONAL TOWNSHIPS FOR THE U.S. SYSTEM OF RECTANGULAR SURVEYS OWNERSHIP (11 Classes) No Data for Upper Talkeetna AGENCY INTEREST (57 Classes) No Data for Upper Talkeetna I-ll BELUGA SUBBASIN SUSITNA RIVER/BASIN ALASKA DATA STRUCTURE AND CLASSIFICATION MANUSCRIPT #1 -INTEGRATED TERRAIN UNIT MAP SLOPE (7 Classes) LANDFORM Physiographic Division (8 Classes) Landform Type (74 Classes) GENERAL GEOLOGY Surficial Geology (4 Classes) Bedrock Geology (21 Classes) GEOLOGIC HAZARDS (13 Classes) SOIL (348 Classes) LAND USE (68 Classes) VEGETATION (41 Classes) MANUSCRIPT #2 -SURFACE HYDROLOGY MAP STREAM Order (8 Classes) Periodicity (2 Classes) Origin (2 Classes) Discharge Profile (2 Classes) Situation (2 Classes) Condition (2 Classes) Anadromous Streams (6 Classes) WATERSHED Topologic Number (76 Classes) MANUSCRIPT #3 -POINTS AND LINEAR FEATURES MAP NATURAL LINES Escarpment (2 Classes) Fault Lines (4 Classes) CULTURAL POINTS AND LINES Roads/Trails/Infrastructure Network (12 Classes) Extractive Sites (7 Classes) MANUSCRIPT #4 -LAND STATUS KAP CONGRESSIONAL TOWNSHIPS FOR THE U.S. SYSTEM OF RECTANGULAR SURVEYS I-12 Chapter II Data Mapping Introduction Hethodology Manuscript Mapping Map No. 1 Integrated Terrain Units Map No. 2 Surface Hydrology Hap No. 3 Points and Linear Features Map No. 4 Land Status II. DATA ~~PPING A. Introduction As indicated, the mapping phase of this project involved the aggregation of the data provided by a number of State and Federal agencies, as well as that derived through the process of photo-interpretatio~, on four separate manuscript maps. Each of these manuscripts represented a class or format of data that could conveniently and meaningfully be displayed on one map. Some of the information was areal, such as landform or geology, and was shown as spatial units called polygons. Other information was in the form of points or lines, such as resource sites and streams, respectively. All three formats of data, categorized according to the types of information conveyed, were mapped for the study. The manuscripts prepared and the format of the data shown are as follows: Manuscript No. Name Data Format No. 1 Integrated Terrain Unit Polygons No. 2 Surface Hydrology Polygons & Lines No. 3 Points & Linear Features Points & Lines Natural Lines Cultural Points & Lines No. 4 Land Status Polygons The integrated terrain unit map utilized a mapping concept which resolved related environmental data to a single manuscript map. Its creation involved the manual overlay and integration of individually interpreted and mapped single-variable overlays onto a single map. A II-1 scale of 1:63,360 was chosen for this manuscript as a means of accurately capturing the detailed soil and vegetation information represented on the collateral overlays. Each overlay contributed lines which were drafted onto the manuscript. However, given that boundaries between natural phenomena were often coincident, .the process often involv~d the delineation of a single line. on the manuscript in place of several different but generaly consistent lines which existed on individual overlay maps. Very small mapping units on the overlays, those smaller in size than two acres in the Talkeetna Subbasin and five acres in the Beluga Subbasin, were typically merged into larger surrounding or adjacent units. Thus, the data on this manuscript are considered to have a minimum polygon resolution of 2 or 5 acres, depending upon the subbasin in which they are located. The result of the process was the development of integrated terrain unit maps comprised of several thousand polygons, each representing areas of homogeneous natural characteristics. The other manuscripts were created by a process of rectification and compositing, with only limited integration occuring on the land status manuscripts to ensure accuracy and con~istency between shared township lines and land status boundaries. They were also delinated at a scale of 1:63,360. II-2 B. Methodology The basic concept underlying the preparation of polygon maps such as Manuscript No~ 1 was the Integrated Terrain Unit Mapping (ITUM) approach, used to integrate several kinds of variables into a single polygon map. There are four general principles dealing with the distribution of natural geographic attributes that relate to the ITUM approach. 1. The Principle of Graded Likenesses and Infinite Differences in Natural Areas No two geographic locations or areas are ever exactly alike, although similaries can be perceived between areas which permit classification of areas into like kinds. The degree of perceived dissimilarity increases directly as the closeness of scrutiny increases. Conversely, similarities become more obvious as observation is less detailed. 2. The Principle of Areal Transitions Changes in natural geographic characteristics from one area to another are usualy gradational. The rate of change along such gradations may vary. Thus, the placement of a line drawn to show the separation of any two features is in part a subjective decision. This means that for two or more data variables, different lines can be resolved into a single line, ,representing the best fit for both features, which can be drafted onto the final ITUM manuscript. 3. The Principles of Continuous Alteration of Areal Characteristics With Time II-3 All the characteristics of any geographic area are changing continuously, although each feature changes at a rate which differs from the rate of change for other features. Since some features change more rapidly than others, the map has some data dealing with rapidly changing features and other data dealing with features which change quite slowly under most circumstances. 4. The Principle of the Functional Interrelatedness of Environmen.tal Elements As the pattern of any environmental attribute changes, it will have recognizable effect on the patterns of other environmental attributes in the same area. This interrelatedness often means that the various features of an area will respond somewhat as a unit, what might be called an "ecological response .unit". The rate of environmental changes are. determined by those factors described in Principle 3. The ITU}l mapping process resolves some major obstacles to the computerized handling of spatialy defined environmental information: the cost of automating multiple parametric data planes; the cost of doing polygon overlays in the computer; the problem of polygon "splinters" created through the overlay process; and perhaps most importantly, the problem of mismatched data sets which are supposed to be related and consistent. In many respects, the latter point represents the .ultimate argument for the integration process. When complex land capability/suitability modeling is done in a data base, such as was done with those for the Talkeetna and Beluga Subbasins, the mismatches among II-4 the data planes can cause major errors to surface across the mapped output. Differentiating between the valid and invalid values which are thus registered is difficult and often impossible. Using computer logic to resolve the discrepancies once the data are automated represents a coarser and less sensitive means than careful decision-making on a case by case basis by an experienced resource speciali~t with photos~ basemaps, and related maps at hand. Cost considerations relate to the considerable amount of staff-time and machine-time required to effectively automate and then overlay a number of maps in the computer. The cost of data base automation is a function of the number of maps to be automated and the complexity of the lines on those maps. If a number of lines are common to every map to be automted, a great saving can be realized by a~tomating these common lines only once rather than for each map. The solution to this problem offered by the ITUM approach is that any line which is common to any two or more data maps is represented on the manuscript map for automation only once. In addition~ the ITUM manuscripting process represents a pre-automation polygon overlay, wherein the polygons represented on the final manuscript represent the units created through the overlay of each of the separate data planes. The computer overlay process is both time-consuming and expensive. It also results in the creation of "splinter" polygons. Numerous small "splinter" polygons are typically created when computer software is used to overlay individually automated data variable maps. The "splinters" are. often due to the failure of what should be identically placed lines, lying on the individual maps, to precisely II-5 coincide with one another. For example, the boundary of a marsh may be shown in different locations on the vegetation map, the soils map, and landform map; or, even if shown in the same place, the boundary may be digitized somewhat differently each time. Even slight variations in the x,y coordinates of the points which define such lines, occurring from one map to the next, will cause splintering to occur. The splinters will be visible in plotted overlay maps and will also evidence themselves in automated analyses of polygon characteristics. The splinters are confusing both to the cartographic display of the data and to their analysis and interpretation as well. Much of the data employed in the development of the GIS for the Talkeetna and Beluga Subbasins was in a format which required rescaling, adjustment to imagery~ or both before it was in a form amenable to integration into a manuscript map. In the rescalin$ process a combination optical/manual procedure was followed. This method involved the use of an optical pantograph. A Kargl reflecting projector, with a rated distortion factor of less than 0.01% was used. Collateral maps were placed on a platform and their images were optically projected upward onto a glass surface. Enlargement or reduction of the original collateral maps occurred as the map-to-lens ratio was changed. Fastening the mylar copy of the topographic basemap onto the projection glass allowed the collateral to be reformatted to the basemap sca]e of 1:63,360. In certain cases, the enlarging or reducing process was repeated twice in order to achieve the required scale. After the information was adjusted to the basemap scale, it was manually II-6 transferred onto the drafting film. Care was taken to ensure that all information was transferred accurately, and that no transposition of information codes occurred. An edit check of the hand drawn map compared it to the original data. The physical characteristics and interpretive values of the phenomena mapped for this project were derived largely from the collateral maps and documents which were provided to the ESRI staff. Aerial imagery and basemaps were used to verify, rectify, and clarify the distribution and areal extent of the phenomena mapped from the collateral. Patterns were adjusted to match the imagery and the basemaps. The imagery and basemaps thus act as geographic "controls" for reformatting and for cartographic inconsistencies between the various data va~iables. Next, the polygons or line segments delineated on the data maps were assigned code numbers. These code numbers referred to the different values or characteristics which each such delineation represented. The code numbers were then either applied directly to the manuscript map itself or were referenced, in turn, to sequential numbers aplied to the map. In either case, the numbers used were related to the polygons or line segments shown on the map by being placed within the polygons or immediately adjacent to the lines. Each module was then edgematched to its adjoining module. Edgematching is a process of comparing the shared borders of adjoining map modules. Edgematching was done to correct any problems occurring along the borders due to the adjoining maps having been created independently of one another. Where lines of any kind crossed from one module into the other, these were checked to be sure that they were II-7 properly located and that they matched. A check was also made to be sure that the code assignments along each side of the shared border were correct and were consistent with those across the border in other modules. As noted above, mapped phenomena can be represented by polygons, points, or lines. In creating poiygon ~aps, the study area was divided into smaller, discrete areas, each bounded by a closed line, called a polygon. Each polygon is homogeneous with respect to the variable or variables to which the particular polygon delineation refers. For purposes of identification and description, the individual polygons on a manuscript map were given sequential identification numbers. Each polygon's sequential identifier was then used to associate the polygon with an identically numbered set of attribute codes. Polygon numbering typicaly commenced with the number 1 in the upper left corner of the manuscript map and progressed sequentialy toward the lower right corner. On the point and line manuscript maps, points were shown as two short line segments crossed at the location of the point feature and linear features were drawn as line segments. Coded values for lines and points were either applied directly to the manuscript map or they were referenced to the map by the use of sequential identification numbers, as with polygons. Locaters for the labels associated with points or lines were similar to the centroids associated with polygons in that they designated the lower left corner location of the first symbol of the label for a point or line. II-8 C. }ffinuscript Maps The maps created for the Talkeetna and Beluga Subbasins are outlined in this section. Appendix C contains a detailed discussion of them, encompassing the following: the reasons for incorporating each variable in the data base; the collateral information used to prepare each manuscript map; the implications of the source map's scale and resolution; the process used to transfer information from the source map to the stable base manuscript map; the interpretive decisions involved; and the reliability and quality of the information provided on each manuscript map. Manuscript No. 1 -Integrated Terrain Units Manuscript No. 1 is a polygon map delineated at a scale of 1:63,360 comprising sixteen data variables for ~alkeetna Subbasin, and nine data variables for Beluga Subbasin. In virtually all instances, the classification used for a given data variable was consistent with that provided in the collateral information. For example, soil and vegetation were both mapped using the data classification provided in the original soil and vegetation surveys provided by the Soil Conservation Service and Forest Service. In some instances, a classification was modified to account to a higher level of data resolution in the present study than in the original one. In the creation of the manuscript maps for each of the corresponding map modules, each data variable was manually cross-compared and then checked against the basemaps and imagery before being delineated on the manuscript. The data planes with the highest accuracy and reliability were drafted first. Those with the least were drafted last. The addition of each new data plane typically resulted in the drafting of II-9 additional lines on the manuscript; however, due to the integration process, proportionately more were added for the highly resolved data planes than for those with low resolution and realiability. As indicated earlier, some of the source data was derived from interpretations made at a scale of 1:250,000 or other general scales. In these cases, boundaries were adjusted to correspond witq existing lines where appropriate. For example, landform boundaries were often changed to correspond with previous! delineated soil, vegetation, and slope lines. The data variables encompassed on the manuscript and their general order of integration are as follows: Soil, Vegetaton, Land Use, Slope, Landform, General Geology, Geologic Hazards, Economic Geology, and Habitat for Talkeetna Subbasin; and Soil, Vegetation, Land Use, Slope, Landform, _General Geology an~ Geologic Hazards for Beluga Subbasin. Manuscript No. 2 -Surface Hydrology Manuscript No. 2 is a polygon and line map delineated at a scale of 1:63,360 comprising eight data variables in two categories for both subbasins. Polygons were used to represent watershed boundaries, lines to represent stream courses. Each stream course was delineated as a series of short, straight line segments. Data were composited on the manuscript, not integrated. All data were nonetheless checked against the basemaps and imagery to ensure accuracy and currency. Manuscript No. 3 -Points and Linear Features Manuscript No. 3 is a line, and point map delineated at a scale of 1:63,360 comprising four data variables for both subbasins. All data composited on the map was checked against the imagery and basemaps. II-10 Linear features were represented by short straight line segments. The data planes and their formats are as follows: Lines Escarpments Fault Lines Roads/Trails/Infrastructure Network Points Extractive Sites Manuscript No. 4 -Land Status Manuscript No. 4 is a polygon map delineated at a scale of 1:63,360 comprising three different data variables. Data variables were cross compared before mapping in order to ensure line match where appropriate. For example, land status lines were drawn to match existing township boundaries where there was a clear relationship but not full correspondence. All data were checked against the basemaps. The order of delineation was as follows: Township, Ownership, and Agency Interest. The maps for Upper Talkeetna and Beluga Subbasins did not contain the ownership data or the Agency Interest data. II-11 Chapter III Data Automation Introduction Methodology Interpreted and Derived Data Interpretive Hatrices Distance Searches III. AUTOMATION A. Introduction The central feature of this study was the automation of all of the geographic data collected for the data bank and regional analyses. The information prepared for automation was in two basic formats: the manuscript maps and the codes for those maps. The maps were automated by a process called digitizing. Lines defining each of the polygons or line segments were stored in the computer as series of x,y coordinates connected by straight line segments. Points were represented by single x,y coordinates. Given that the polygon coordinates were closely spaced and the connecting straight lines very short, the automated polygons closely approximate the curved lines drawn on the original manuscripts. The codes, which describe the attributes of the environmental variables represented on the manuscripts, were keypunched directly into the computer. A series of programs were then run on both the map and code data to eliminate errors and inconsistencies and to prepare the information for analysis, modeling, and computer mapping. This procedure was· followed for each of the four manuscripts for each of the map modules comprising the two study areas. After all errors and inconsistencies on all the maps for a given study area were corrected, the polygon, line, and point information was converted into a parallel grid format. This in effect involved overlaying a uniform rectilinear grid over the automated maps and assigning an appropriate value for each variable to each cell based on the predominant characteristics in that cell. The result of this and other processes was the creation of two grid III-1 multivariable files (MVF). Each MVF incorporated all the data of the four manuscripts comprising the given subbasin study area into one code string for each grid cell. In addition to the maps and basic code information, matrices of interpreted data were automated for the soil data variable. These interpretations provide supplementary information for mapped soil phases and series. In effect, they added layers of descriptive and interpretive codes to the basic soil units which were originally mapped. An expanded code of this type represents an efficient form of recording, storing, and modifying information which is, by nature, subject to change. Derived data items were also added to the data bases. These items are those which obtain from basic and/or interpreted data. They include distance searches, in which cells are identified in terms of their distance from such mapped phenomena as streams and roads. These derived data were included in the data base with the basic and interpreted data. The final automated data bases contained data developed by three distinct processes. The spatial configuration and essential attributes of the mapped units were automted by a process of coordinate digitizing and code keypunching. These data were subsequently subjected to procedures which created a parallel grid file. The actual information in the system, however, was expanded by the addition of· select matrix descriptions and interpretations. These were keypunLhed into the system and structured as associative tables in the polygon files. The data stored in the grid files were further expanded by the process of evaluating each grid cell relative to its distance from select geographic III-2 phenomena and the number of occurrences of select phenomena within a specified radius. B. Methodology The technical process involved in transferring geographic data from the manuscript maps and associated codes to the automated data files can be divided into four major tasks. These can be described as follows: 1. Manuscript Map Preparation for Digitizing Before any manuscript map was automated, it was carefully checked for errors and prepared for actual digitizing. The checking included examination for missing polygons or codes, extraneous lines, or problems which might cause confusion during digitizing. Next, a unique number was assigned to each of the four manuscript maps for each of the corresponding modules to distinguish it from all of the other files. Certain of the manuscripts were further subdivided into variable files during processing, reflecting the different types of data included on these maps. The manuscript and variable file numbers used and their corresponding variables are as follows: Hanu-Manuscript Processed Type script Map Variable of tt Name Variables File It Data 1 Terrain Units Terrain Units 01 Polygons 2 Surface Watersheds 22 Polygons Hydrology Course Lines 12 Lines 3 Points, Linear, Escarpments/Faults 53 Lines III-3 4 and Natural Features Land Status Cultural Lines Extractive Sites Land Status 43 03 04 Lines Points Polygons Next, each manuscript map was prepared for digitizing by geographic reference tic points on each map in sequence from north to south. Then~ the origin point and centroid of each polygon were marked. 2. Digitizing Using a process termed "digitizing", all data recorded on the manuscript map was converted to machine readable form. A digitizer, a backlighted drafting table to which is attached a movable cursor, was used to make this conversion. As the cursor was moved horizontally and vertically over each manuscript map mounted on the digitizer table, electronic devices translated these movements into digital measurements in units of one thousandths of an inch. The numbered tic marks were digitized first. The cursor was moved to each tic mark and, by "pressing a key, a record was sent to a mini-computer for storage. After all tic marks were digitized, each polygon, point, and line on the map was similarly recorded and stored. The digitized record indicated the precise location in x,y coordinates of all mapped information with respect to the tic marks. The tic marks represented known points of latitude and longitude to which all of the mapped information was referenced. Data digitizing and all subsequent data automation processes utilize PIOS (Polygon Information Overlay System) and GRID software. These software sets III-4 have been developed by ESRI during the past ten years. The digitizing process involved systemtically recording data according to a standard set of procedures. For polygon data, this involved selecting and recording a string of x,y coordinates, termed "vertices", where a change in direction occurred along the border of each polygon. Curves were approximated by short straight line segments. All polygons were automated as closed units. They were digitized in a specific order and sequenced accordingly. When donut polygons occurred, the innermost polygons were digitized first. Digitizing then proceeded to the polygon which contained the donut polygon or polygons. PIOS software resolved the hierarchy. Lines were digitized like polygons except that the strings of x,y coordinates were not required to close. Point features were represented by single x,y coordinates. 3. Editing of Digitized Files After the manuscript map was digitized, the stored record was transferred from the digitizer's mini-computer to a large computer for further processing. The first step in the edit process was·to shift and scale the coordinates of each file relative to tic marks w~ich provided geographic reference. From this step, lists were generated which allowed tic identification numbers, tic coordinates, sequence numbers, donut level identifiers, and code numbers to be checked. Because of machine errors during digitizing, it was sometimes necessary to redigitize a polygon or a series of polygons. -After these editing steps were completed, changes were made and the III-5 revised files were stored. At this stage, all information stored in the file was numericaly accurate. After these machine edits, a plot of each manuscript map of each module was generated. These computer maps were used to visually check the accuracy of the digitized and machine edited x,y coordinates against the original manuscript maps. Following the visual edit of points, lines, and polygons, the numeric attribute codes which had been keypunched into the computer were associated with their appropriate spatial unit. Each of the data variables in the system was plotted out at the manuscript scale and compared against manually prepared overlays of the collateral I data. These plots, termed "dropline plots", were used to ensure that each data variable was accurately delineated and coded in the computer data file. Most data errors discovered in this edit process were corrected using PIOS edit software. For cases where entire polygons were missing, the original manuscript map was remounted on the digitizer and entire polygons in error were digitized. This redigitized information was merged into with the previous information set. 4. Final File Generation This process involved the creation of final point, line, and polygon files for each of the two study areas as well as the creation o~ two parallel grid cell files. Two preliminary steps were required for completion of the x,y coordinate files. The first step involved the conversion of the digitized tic coordinates, which were referenced in inches, to a geographic coordinate referencing system III-6 such as UTM. The next step involved the merging of the individual files created for each map module into a single file for the entire study area. At the completion of this step, the data files were in their final x,y coordinate format. Following completion of the final polygon files, a grid cell format data file was created. Using a series of ESRI computer programs including GRIPS (Gridded information from Polygons), the polygon data files were converted to grid cell format data file. In effect, a uniform grid with a cell size of 10 acres was super-imposed over the point, line, and polygon data in each of the x,y coordinate files and each cell was assigned a code corr~sponding to the unit or the value of the unit in which it was located. This process resulted in the creation of a number of single variable grid files. These were subsequently merged together to create a multi-variable file of all of the grid data for each study area. The complete multi-variable files created for the Talkeetna and Beluga Subbasins contained all of the data variables contained in the four manuscript maps and some of the interpretative data from the expansion matrices. Certain simple data items were packed into one position in the multi-variable file to save space. The codes for two of the data variables, Cultural Lines and Stream Order, were renumbered to facilitate the gridding process. These new GRID code numbers'are listed in parenthesis along with the original PIOS codes in Appendices Al (Talkeetna) and A2 (Beluga) of this report. The format and contents of the multi-variable file are outlined in Appendices Dl III-7 (Talkeetna) and D2 (Beluga) of this report. C. Interpretive and Derived Data The basic data files created for the Talkeetna and Beluga studies were expanded to include interpretive and derived data. The interpretive data were added by keypunching numeric codes outlined on expansion matrices associated with specific data variables and classes. The derived data were generated through the manipulation of data which were already automated. This involved the execution of a number of simple and complex distance search procedures. The interpretive and derived data encompassed in the Talkeetna GIS and the Beluga GIS are described in the following subsec~ions: Expansion Matrices The soils which were mapped as part of this study were delineated and identified by series and phase names. Several code matrices which provided additional description and interpretation of the mapped units were developed by the Soil Conservation Service. These were automated by ESRI and associated with their respective soil types. The characteristics which were associated with the approximately three hundred soil units are outlined below. It is important to note that once the matrixed interpretive values were associated with their respective soil types in the data bank, maps illustrating the distribution of the interpreted condition could be produced. The interpretive values were similarly positioned by direct use in the computer modeling efforts. III-8 Soil Expansion Hatrix Factors Description Slope Phase K Factor Capability Rating Agricultural Capability Class Agricultural Productivity Rating Grains Hay, Silage and Pasture Potatoes Average Oats and Barley Potential Grazing Potential Limitations Septic Tank Absorption Fields Shallow Excavation Dwellings without Basements Dwellings with Basements Small Commercial Buildings Local Roads and Streets Roadfill Source Drainage Camp Areas Picnic Areas Playgrounds Paths and Trails III-9 The complete soil expansion matrix is included in Appendix E. Distance Searches Once all of the data for the study were in a grid format, additional manipulations of the data were performed. These involved the application of both simple and complex distance search programs to the automated data. Simple search programs were used to determine the distance of each cell from streams, water bodies, roads, and a number of other features. These.features were originally encoded as basic data items in the form of polygons, points, and lines. For each feature, the computer determined the grid cells within a specified distance of that feature. Cells within that distance were coded consecutively from "0" for the feature itself, increasing outward as successive integers for each cell. Cells outside that distance w~re coded as 9999. Complex search programs were used to identify and record the number of different types or classes of phenomena lying within a specified radius of each cell. The number of different vegetation types lying within one half kilometer of each cell was determined by such a procedure. This served as a measure of ecological edge conditions. A measure of relative relief was similarly determined. The following distance searches were conducted as part of the Talkeetna and Beluga studies: Low Density Remote Residential Talkeetna Subbasin Only a. Vegetation Cover -Codes from Primary Vegetation 2 cells High (codes = 25, 28, 46) III-10 2.cells Moderate (codes 21, 24, 26, 27, 29, 32, 33, 34, 42, 45) 2 cells Low (codes = 22, 31, 35, 36, 43) 2 cells Very Low (codes = 41, 50, 51, 52, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69) b. Water Availability 16 cells Lake (code = 8 from Physiographic Division) 16 cells Large River (code 97 from Primary Vegetation 4 cells Non-Glacial Stream (code = 2 from Stream Origin) Remote Subdivisions a. Vegetation Cover -Codes from Primary Vegetation 2 cells High (codes = 21, 22, 24, 25, 26, 42, 45) 2 cells Moderate (codes = 27, 28, 29, 31, 32, 33, 34, 46) 2 cells Low (codes = 35, 36, 41, 43, 50, 51, 52, 60, 61, 62, 64, 65, 66, 67, 68. 69) b. .Water Availability Lake (code = 8 from Physographic Division) Large River (code = 97 from Primary Vegetation) 8 Cells Non-Glacial Streams = 2nd Order (codes = 2-6 from Stream Order and code = 2 from Stream Origin) Moderate/High Density Residential Water Availability 63, Non-Glacial Streams > 2nd Order (codes = 2-6 from Stream Order and code = 2 from Stream Origin) III-11 Chapter IV Computer Hodeling Introduction Methodology Model Outlines IV. COMPUTER MODELING A. Introduction The automated data base developed for thP-Talkeetna and Beluga Subbasins was used for purposes of regional land assessment and evaluation. Working under the direction of and in conjunction with State and Federal resource specialists and planners, ESRI processed a number of. conceptual models to assess both the natural opportunities and constraints in the region and the capability and suitability of the land for potential uses. At the outset of each study, ESRI staff met with representatives of State and Federal Agencies and developed the general criteria for modeling. Following the automation of the data base, ESRI staff b~gan programming conceptual models provided by the appropriate agencies. As conducted during this study, modeling was both a developmental and iterative process. The mapped results of the first model iterations were reviewed in the field and revisions were made to the models and programs. Most of the models went through three iterations before being finalized. It is important to note that GIS applications represent a dynamic process which is systematic, flexible, and ongoing. Thus, the models and maps presented in this report represent a time slice across a line of evolutionary understandings and perspectives about the natural and cultural resources of the Talkeetna and Beluga Subbasins. As employed in this study, modeing represented a process by which the data mapped and automated for the study were manipulated in the co~outer to produce maps with evaluations of various environmental factors. Such IV-1 evaluations were based on a set of assumptions regarding the positive or negative significance of particular features of the landscape to the relevant factor. For example, the relative importance of geologic units ~ ··n to an evaluation of groundwter availability and of slope to the evaluation of land capability for certain types of development was ass~ssed. Some of the models were based upon the assignment of numeric values to different data variables, others were based upon the assignment of ratings. In the settlement capability models, each variable within each factor was assigned a rating from high to low plus incapable. For example, in the evaluation of capability for large lot subdivisions, the landform type glacial moraine was ranked as high capability, active floodplain as incapable. Each of the settlement models contained a summation element which, in effect, determin~d the overall capability rating of each area. As used in this study, land capability was conceptualized as the inherent capacity of the land to sustain development, taking into account natural promoting and constraining factors. More specifically, it referred to the inherent capacity of the total complex of land-based environmental patterns and processes to sustain a specific type of use without bringing about unusual environmental degradation or exposing people or investment ·to hazards or unusual costs. IV-2 B. Hethodology Eighteen models were applied to the Talkeetna data base, and fifteen models were applied to the Beluga data base. Thirteen of these models were the same 'for both subbasins, and Two of the models derived similar outputs by somewhat different processes. Consequently, at this time, three models were applied to the Talkeetna data base and were not applied to the Beluga data base. There were two general types of models used. The first type, sch as the Soil Drainage model, draw directly from a matrix of interpretive values coded to one of the basic data types included in the data bank. these models might be termed simple.models. The second, such as the residential capability/suitbility models, reference and assign new value to a number of basic, derived on previously interpreted factors. These complex models might be considered true analytical models. They were applied to the automated data bases in order to analyze and evaluate natural constraints and opportunities in the study area and to assess land capability for specific uses. These models were designed and evaluated by representatives of State and Federal Agencies incl~ding: Alaska Department of Natural Resources; Alaska Department of Fish and Game; u.s. Soil Conservation Service; U.S. Forest Service; and U.S. Fish and Wildlife Service. One of the models, Erosion Potential, was developed by a contractor working for the Department of Natural Resources. The models were structured to provide a useful output to the resource analysis and planning process. They were directed by and are consistent with established and accepted principles of resource evaluation, and they are sensitive to the particular !V-3 environmental conditions and interrelations existing in the study area. The assumptions guiding model development are implicit in the factors selected an9 the weights assigned. Several,interpretive models require {' special mention. The route selection model (COLOS) called for the application of a dynamic overlay program in the determination of optimal paths between select points in the study area. Using soils and landform ratings as a numerical base, the program generated a numerical ·surface between each pair of points. The shortest distance at the least cost represented the optimal path. The program was run for specific pairs of points and the results aggregated for final display. The wetlands model did not require the application of a special program. It was, however, designed as a test of the potential for deriving wetland delineations from soil and vegetation surveys. The following models were developed as part of this study: MAPS A..'® MODELS MAP J~ TITLE SUBBASIN 1r Simple 1 Soil Drainage Both Simple 2 Soil Limitations for Dwellings Both Simple 3 Range Resources Both Simple 4 Slope Both Simple 5 Forest Resources Both Analytical 6 Groundwater Availability Both Analytical 7 Economic Agriculture/Forestry Both Simple 8 Important Farmland Both IV-4 Simple 9 Important Grazing Lands Talkeetna Analytical 10 Capability for Accessed Large Lot Residential Development Talkeetna Analytical 11 Capability for Moderate/High Density Residential Development Both Analytical 12 Capability for Low Density Remote Residential Development Both Analytical 13 Erosion Potential Both Analytical 14 Habitat I -Moose Both Analytical 15 Habitat II -General Habitats Both Analytical 16 Wetlands Diff Analytical 17 Road Suitability Diff Analytical 18 Colas Talkeetna Once programmed, each model was run in the automated geographic data files for the study area. All models were run in the 10-acre grid multi-variable file developed from the original point, line, and polygon data. This file included the following: basic data encoded in the initial process of automation; interpretive data encoded in the expansion matrices; and derived data developed through the process of distance searching. Many of the models required the development of sub-modeling routines to evaluate such complex considerations as water and fuel availability, ecological edge, and terrain diversity. The results of each of the sub-models were checked before they were channeled into the principal models. As indicated earlier, most of the models went IV-5 through three iterations. The map outputs 1vere first checked by ESRI progressional staff to ensure that the model had been programmed accurately. The maps were then forwarded through the Soil Conservation Service for review and for model revision by the appropriate agencies. The finalized models were then programmed for the production of line .Printer .maps identified in the following chapter. IV-6 C. Model Outline Each of the models developed and programmed for evaluating the land resources of the Willow Subbasin is outlined on the following pages. The outlines were designed to legibly convey the essence and salient characteristics of each model to both readers and programmers. Four columns were used to indicate model logic, data base factors, and value assignment. The first column indicates the general concept under consideration. General considerations such as water availability and septic tank limitations tie in directly with the water supply and waste disposal requirements of certain kinds of developed land uses. The second column identifies the specific class of data in the grid cell data base which was being used to sa~isfy the analytical requirements of the general consideration. For example, subsurface water availability as expressed through well yield and surface water availability as expressed through the incidence of non-glacial streams were often employed in the determination of general water availability. The third and fourth columns identify the values assigned to each of the specific_factors and variables. The third column identifies value assigned when the specific feature or condition was incident in a cell, the fourth when it was proximate to a cell. Thus, an area might have received high vegetative resource value if it had a specific kind of forest cover or was close to an area which did. As evident, numeric values were assigned in some of the models, rank classification in others. In some models binary ratings were used, ON indicating that the analysis was passed to other steps in the model, OFF that the analysis was terminated. In several models, IV-7 factors or variables were not rated (NR) when no particular association or value could be determined. Care was taken in all of the models to ensure against double weighting and the possibility of an area with a clearly unsuitable condition receiving a high overall value and rating because of some other very positive conditions existing there. All modeled data were ultimately grouped into classes on the final maps produced in the study. IV-8 MODEL OUTLINE SOIL DRAINAGE Consideration Specific Data Class Soil Characteristic Excessively Drained (E) Well Drained (W) Moderately Well Drained (M) Poorly Drained (P) Very Poorly Drained (VP) Glacial Water IV-9 Value (Incidence) 1 2 3 4 5 6 7 Value (Proximity) MODEL OUTLINE SOIL LIMITATIONS FOR.DWELLINGS Co-qsideration ... Soil Characteristic Specific Data Class Limitations Dwellings Without Basements Value (Incidence) Slight (St) 1 Moderate (M) 2 Severe ( Sr) 3 Water 4 Dwellings With Basements Slight (St) Moderate (M) Severe (Sr) t-later IV-10 . 1 2 3 4 Value (Proximity) MODEL OUTLINE RANGE RESOURCES Consideration Primary Vegetation Specific Data Class Closed Forest Coniferous Forest, White Value (Incidence) Spruce, Short Stands 2 Deciduous Forest, Mixed Forest, Young Stands 2 Deciduous Forest, Mixed Forest, Medium-Aged Stands 2 Coniferous Forest, White Spruce, Tall Stands 2 Deciduous Forest, Mixed Forest, Old Stands 2 Cottonwood, Young Stands 2 Cottonwood, Medium-Aged Stands 2 Cottonwood, Old Stands 2 Open Forest-Woodland Coniferous Forest, White Spruce, Short Stands 3 Deciduous Forest, Mixed _ Forest, Medium-Aged Stands 3 Coniferous Forest, White Spruce, Tall Stands 3 Deciduous Forest, Mixed Forest, Old Stands 3 Cottonwood, Medium-Aged Stands 3 CottonwoQd, Old Stands 3 Closed Forest (Black Spruce Mountain Hemlock) Black Spruce, Short Strands 2 Black Spruce, Tall Stands 2 Mountain Hemlock, Short Stands 2 Mountain Hemlock, Tall Stands 2 Open Forest-Woodland (Black Spruce) Black Spruce, Short Stands 3 IV-11 Value (Proximity) Salt Water Wetlands Salt Grassland Low Shrub Tidal Marsh Tall Shrubs Alder Alder-Willow Low Shrub .Willow Resin Birch Grassland Upland Grass Tundra Sedge-Grass Herbaceous Shrub Mat and Cushion Fresh Water Wetlands Sphagnum-Bog Sagnum-Srub Bog Cultural Features Cultural Influences Barren Mud Flats Rock Permanent Snow and Ice Snowfield Glacier Water Lakes ) 40 acres Lakes ) 10 10 acres < 40 acres Streams ) 165 Ft Wide < 600 Feet Rivers > 1/8 Mile Wide IV-12 5 5 5 6 6 6 8 7 7 6 7 4 4 1 1 1 1 1 1 1 1 1 MODEL Sill-lliATION RULES Rank Category 1 = Non Vegetated 2 = Closed Forest 3 = Open Forest 4 = Fresh Water Wetland 5 = Salt Water Wetland 6 Shrub 7 = Tundra 8 = Grassland IV-13 MODEL OUTLINE SPECIFIC SLOPE FROM SOILS Consideration Soil Characteristic Slope Gradient Specific Data Class Slope Gradient Water Glacial 0-3% Slope 3-7% Slope 7-12% Slope 12-20% Slope 20-30% Slope 30-45% Slope > Slope IV-14 Value (Incidence) 1 2 3 4 ·s 6 7 8 9 Value (Proximity) HODEL OUTLINE FOREST RESOURCES Consideration Primary Vegetation Specific Data Class Closed Forest Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Young Stands Deciduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Forest, Old Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Young Stands Cottonwood, Medium-Aged Stands Cottonwood, Old Stands Open Forest-Woodland Coniferous Forest, White Value (Incidence) 9 5 5 9 5 3 3 3 Spruce, Short Stands 8 Deciduous Forest, Mixed Forest, Mediume-Aged Stands 4 Coniferous Forest, White Spruce, Tall Stands 8 Deciduous Forest, Mixed Forest, Old Stands 4 Cottonw~od, Medium-Aged Stands 2 Cottonwood, Old Stands 2 Closed Forest (Black Spruce Mountain Hemlock) Black Spruce, Short Stands 7 Black Spruce, Tall Stands 7 Mountain Hemlock, Short Stands 9 Mountain Hemlock, Tall Stands 9 Open Forest-Woodland (Black Spruce) Black Spruce, Short Stands 6 IV-15 Value (Proximity) Salt Water Wetlands Salt Grassland Low Shrub Tidal Marsh Tall Shrubs Alder Alder-Willow Low Shrub Willow Resin Birch Grassland Upland Grass Tundra Sedge-Grass Herbaceous Shrub Mat and Cushion Fresh Water Wetlands Sphagnum-Bog Sagnum-Shrub Bog Cultural Features Cultural Influences Barren Mud Flats Rock Permanent Snow and Ice Snowfield Glacier Water Lakes ) 40 Acres Lakes > 10 Acres < 40-Acres Streams ) 165 Feet Wide < 600 Feet Wide Rivers ) 1/8 Mile Wide IV-16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HODEL SUMMATION RULES Rank Category 1 Non-Forests 2 = Open Cottonwood 3 = Closed Cottonwood 4 Open Mixed Forest 5 = Closed Mixed Forest 6 = Open Black Spruce 7 = Closed Black Spruce 8 = Open White Spruce 9 = Closed White Spruce, Hemlock IV-17 MODEL OUTLINE GROUNDWATER AVAILABILITY Consideration Specific. Data Class General Geology No ~urficial Deposits Surficial Deposits Waterbody Glacier Physiographic. Mountain Division Hill Slope Plateau Valley Coastal Lowland Glacier Waterbody Landform Glacial Fluvioglacial Aero lean Littoral Fluvial Channel River Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposits Mass Wasting Colluvium Talus Landslide Deposits Rock Glacier Mine Tailings Tectonic. Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow IV-18 Value Value (Incidence) (Proximity) 2 3 3 1 2 2 3 2 3 3 1 3 2 2 2 3 3 3 3 3 2 2 2 2 1 2 1 2 2 1 1 3 1 MODEL SUMMATION RULES H = All 3, no 2 or 1 M = One or More 2's, no 1 L = One or More 1 IV-19 · HODEL OUTLINE ECONOMIC AGRICULTURE/FORESTRY Con~:lideration Soil Characteristic Primary Vegetation Specific Data Class Agricultural Capability Class II Class III Closed Forest Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Young Stands Deciduous Fares t, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stand.s Cottonwood, Young Stands Cottonwood, Nedium-Aged Stands Cottonwood, Old Stands Open Forest-Woodland Coniferous Forest, White Value (Incidence) 1 2 5 5 5 5. 5 0 5 5 Spruce, Short Stands 0 Deciduous Forest, Mixed Forest, Medium-Aged Stands 0 Coniferous Forest, White Spruce, Tall Stands 0 Deciduous Forest, Mixed Forest, Old Stands 5 Cottonwood, Medium-Aged Stands 0 Cottonwood, Old Stands 5 Closed Forest (Black Spruce Mountain Hemlock) Black Spruce, Short Stands 5 Black S~ruce, Tall Stands 5 Mountain Hemlock, Short Stands 0 Mountain Hemlock, Tall Stands 5 IV-20 Value (Proximity) Open Forest-Woodland (Black Spruce) Black Spruce, Shorts Stands 0 Salt Water Wetlands Salt Grass Land Low Shrub Tidal Marsh Tall Shrubs Alder Alder-Willow Low Shrub Willow Resin Birch Grassland Upland Grass Tundra Sedge-Grass Herbaceous Shrub Mat and Cushion Fresh Water Wetlands Sphagnum-Bog Sph~gnum-Shrub Bog Cultural Features Cultural Influences Barren Mud Flats Rock Permanent Snow and Ice Snowfield Glacier Water MODEL SUMMATION RULES Value Ranking Category Off 1 Water 0 2 Other Lands 7 3 Class III and Select Forest IV-21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Off 6 5 2 1 4 5 6 7 Class II and Select Forest Select Forest Type Class III Soils Class II Soils IV-22 MODEL OUTLINE HlPORTANT FARMLAND Consideration Specific Data Class Landform Active Channel Water Soil Characteristics Soil Priority MODEL SUMMATION RULES Capability Class A Capability Class B Capability Class C Capability Class D Capability Class E Capability Class F Water Point Value GE5.3 A B c D E F w 4.3 -5.2 3.3 -4.2 2.3 -3.2 1.3 -2.2 o.o -1.2 IV-23 Value (Incidence) w w A B c D E F Value (Incidence) MODEL OUTLINE IMPORTANT GRAZING LANDS (POTENTIAL) TALKEETNA SUBBASIN Consideration Specific Data Class Soil Characteristics Important Grazing Lands (Potential) 1 2 3 4 5 MODEL SUMMATION RULES Excellent 1 Good 2 Fair 3 Poor 4 Water 5 IV-24 Value (Incidence) 1 2 3 4 5 Value (Proximity) MODEL OUTLINE LAND CAPABILITY FOR ACCESSED LARGE LOT RESIDENTIAL DEVELOPMENT TALKEETNA SUBBASIN Consideration Landform Type Specific Data Class Glacial Moraine Till Drumlin Value (Incidence) H H Drumlin/Drumloid H Rock Drumlin NR Fluvioglacial Outwash H Abandoned Outwash Channel H Remnant Subglacial Stream Valley Kame Complex Esker Crevasse Filling Side Glacial Drainage Channel Flute Aeolian Dune Littoral Longshore Bar Beach Barrier Spit Delta Tidal Flat Coastal Plain Fluvial Active Channel River Bar Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposit Mass Wasting Colluvium Talus Landslide Deposit Rock Glacier Mine Tailings IV-25 H H H H H H L L L L L u NR u tr u NR H H H u u u u u Value (Proximity) Slope Gradient Geologic Hazard Tectonic. Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow Average Slope Gradient 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Specific. Slope Phase 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Primary Potential Flood Zone Secondary Potential Flood Zone Outburst Flood Zone Catastrophic Wave Zone Landslide Zone Varying Particle Size Unstable Ground Avalanch~ Track Soil Characteristics Septic Tank Limitations Slight Moderate Severe Limitations for Dwellings With Basements Slight Moderate Severe Limitations for Dwellings Without Basements Slight Moderate Severe IV-26 H NR NR u u H H H M L L u H H H M M L u u NR u u u NR NR u H M L H M M H M L Water Availability MODEL SUMMATION RULES Limitations for Local Roads and Streets Slight Moderate Severe Drainage Excessively Drained Somewhat Excessively Drained Well Drained Moderately Well Drained Some~ihat Poorly Drained Poorly Drained Very Poorly Drained Potential Well Yield Area Area 1 Area 2 or 3 H H M M H H M L u u L H Ratings are scanned within each general category encompassing more than one factor and the most severely constraining rating is used to provide the overall rating for the category. In effect, each general consideration - landform, soils, water availability, etc.,-has a single rating when summation begins. The following summation procedures are used: High Capability Moderate Capability Low Capability Incapable GElH and Not EQ M L or U . EQl or 2M and Not EQ L or U GT2M or EQl or 2L and Not EQ U GT2L or GElU IV-27 MODEL OUTLINE LAND CAPABILITY FOR MODERATE/HIGH DENSITY RESIDENTIAL DEVELOPMENT Consideration Landform Type Specific Data Class Glacial Value (Incidence) Moraine H Till H Drumlin Drumlin/Drumloid H Rock Drumlin NR Fluvioglacial Outwash H Abandoned Outwash Channel H Remnant Subglacial Stream Valley H Kame Complex H Esker H Crevasse Filling H Side Glacial Drainage Channel H Flute H Aeolian Dune Littoral Longshore Bar Beach Barrier Spit Delta Tidal Flat Coastal Plain Fluvial Active Channel River Bar Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposit Mass Hasting Colluvium Talus Landslide Deposit Rock Glacier Mine Tailings IV-28 L u u u L u NR u u u NR H H H u u u u u Value (Proximity) Slope Gradient Geologic Hazard Tectonic Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow Average Slope Gradient 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Specific Slope Phase 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Primary Potential Flood Zone Secondary Potential Flood Zone Outburst Flood Zone Catastrophic Wave Zone Landslide Zone Varying Particle Size Unstable Cround Avalanche Track Soil Characteristics Limitations for Dwellings With Basements Slight Moderate Severe Limitations for Dwellings Without Basements Slight Moderate Severe Limitations for Local Roads and Streets Slight Moderate IV-29 H NR NR u u H H H M L u u H H H M L L u u NR u u u NR NR u H M L H M L H H Water Availability MODEL SUMMATION RULES Severe Drainage Excessively Drained Somewhat Excessively Drained Well Drained Moderately Well Drained Some~vhat Poorly Drained Poorly Drained Very Poorly Drained Ice Non-Glacial Stream (GE2nd Order) LEl Mile Distance GTl Mile Distance If Potential Well Yield Area 1 If Potential Well Yield Are.a 2 or 3 M M H H M L u u u NR L NR Ratings are scanned within each general category encompassing more than one -factor and the most severely constraining rating is used to provide the overall rating for the category. In effect, each general consideration - landform, soils, water availability, etc.,-has a single rating when summation begins. The following summation procedures are used: High Capability Moderate Capability Low Capability Incapable GElH and Not EQ M L or U EQl or 2M and Not EQ L or U GT2M or EQl or 2L and Not EQ U GT2L or GElU IV-30 MODEL OUTLINE LAND CAPABILITY FOR LOW DENSITY REMOTE RESIDENTIAL DEVELOPMENT Consideration Landform Type Specific Data Class Glacial Moraine Till Drumlin Drumlin/Drumloid Rock Drumlin Fluvioglacial Outwash Abandoned Outwash Channel Remnant Subglacial Stream Valley Kame Complex Esker Crevasse Filling Side Glacial Drftinage Channel Flute Aeolian Dune Littoral Longshore Bar Beach Barrier Spit Delta Tidal Flat Coastal Plain Fluvial Active Channel River Bar Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposit Mass Wasting Colluvium Talus Landslide Deposit Rock Glacier Mine Tailings IV-31 Value (Incidence) H H H NR H H H H H H H H L L L L L u NR u u u NR H H H u u u u u Value (Proximity) Slope Gradient Geologic Hazard Tectonic Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow Average Slope Gradient 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Specific Slope Phase 0-3% 3-7% 7-12% 12-20% 20-30% 30-1~5% > 45% Primary Potential Flood Zone Secondary Potential Flood Zone Outburst Flood Zone Catastrophic Wave Zone Landslide Zone Varying Particle Size Unstable Ground Avalanche Track Soil Characteristics Limitations for Dwellings With Basements Slight Moderate Severe Limitations for Dwellings Without Basements Slight Moderate Severe Drainage Excessively Drained Somewhat Excessively Drained IV-32 H NR NR u u H H H H M L L H H H H M M u u NR u u u 1'R NR u H H M H H M M H Vegetation Cover Well Drained Moderately Well Drained Somewhat Poorly Drained Poorly Drained Very Poorly Drained Ice Closed Forest Coniferous-White Spruce- Short Coniferous-White Spruce- Tall Coniferous-Black Spruce- Short Coniferous-Black Spruce- Tall Coniferous-Hemlock-Sort Coniferous-Hemlock-Tall Deciduous/Mixed-Young Deciduous/Mixed-Medium Age Deciduous/Mixed-Old Cottonwood-Young Cottonwood-Medium Age Cottonwood-Old Open Forest_ Coniferous-White Spruce- Short Coniferous-White Spruce- Tall Coniferous-Black Spruce- Short Deciduous/Mixed-Medium Age Deciduous/Mixed-Old Cottonwood-Medium Age Cottonwood-Old Non-Forest Salt Water Wetland Tall Shrubs Low Shrubs Grassland Tundra Fresh Water Wetland Culturally Disturbed Land If Agriculture, Vacant- Disturbed, or Extensive Recreation If Other Developed Land Use Barren Permanent Snow and Ice IV-33 H M H L u u M H u M M H M }1 M M H M L M L }1 M L L u u u u u u L L u u M H u M M H M M M M H M L M .L M M L L u u u u u u Water Availability MODEL SUMMATION RULES Water Lake, Large River or Non-Glacial Stream LE 1/4 Mile Distance GT 1/4 -EQ 1/2 Mile Distance GT 1/2 Mile Distance u H M L Ratings are scanned within each general category encompassing more than one factor and the most severely constraining rating is used to provide the overall rating for the category. In effect, each general consideration - landform, soils, water availability, etc., -has a single rating when summation begins. The follatdng summation procedures are used: High Capability Moderate Capability Low Capability Incapable GElH ~nd Not EQ M L or U EQ1 or 2H and Not EQ L or U GT2M or EQl or 2L and Not EQ U GT2L or GElU IV-34 MODEL OUTLINE EROSION POTENTIAL Consideration Specific Data Class Soil Characteristics K Factor Slope Gradient MODEL SIDfMATION RULES Specific Slope Gradient 0-3% 3-7% 7-12% 12-20% 20-30% 30-45% > 45% Value (Incidence) N .245 .746 1.78 3.60 6.34 10.71 17.58 Value (Proximity) K Factor values are multiplied to·value for average slope gradient to determine computed soil loss in tons per acre-year. Value Ranking Category 1 Water 0-3 2 0-3 Tons/Acre-Year 4-7 3 4-7 Tons/Acre-Year 8-15 4 8-15 Tons/Acre-Year 16-25 5 16-25 Tons/Acre-Year 26-40 6 26-40 Tons/Acre-Year 41-129 7 GT 40 Tons/Acre-Year IV-35 MODEL OUTLINE HOOSE HABITAT Consideration Primary Vegetation Specific data Class Closed Forest Coniferous Forest, White Spruce, Short Stands Deciduous Fares t, Mixed Forest, Young Stands Deciduous Fares t, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Young Stands Cottonwood, Medium-Aged Stands Cottonwood, Old Stands Open Forest-Woodland Coniferous Forest, White Value (Incidence) 3 2 1 1 2 1 3 3 Spruce, Short Stands 2 Deciduous Forest, Mixed Forest, Medium-Aged Stands 2 Coniferous Forest, White Spruce, Tall Stands 2 Deciduous Forest, Mixed Forest, Old Stands 3 Cottonwood, Medium-Aged Stands 5 Cottonwood, Old Stands 3 Closed Forest (Black Spruce Mountain Hemlock) Black Spruce, Short Strands 4 Black Spruce, Tall Stands 4 Mountain Hemlock, Tall Stands 1 Open Forest-Woodland (Black Spruce) Black Spruce, Short Stands 5 IV-36 Value (Proximity) Salt Water Wetlands Salt Grassland Low Shrub Tidal Marsh Tall Shrubs Alder Alder-Willow Low Shrub Willow Resin Birch Grassland Upland Grass Tundra Sedge-Grass Herbaceous Shrub Mat and Cushion Fresh Water Wetlands Sphagnum-Bog Sagnum-Srub Bog Cultural Features Cultural Influences Barren Mud Flats Rock Permanent Snow and Ice Snowfield Glacier Water MODEL SU}~~TION RULES VALUES 1-4 = LEVEL 1 MOD/HIGH WR, (S/S/F) RANGE VALUES 6-7 = LEVEL 2 MOD/HIGH (S/S/F) RANGE, NO WR VALUES 5, 8-10 =LEVEL 3 LOW TO NO HABITAT VALUES 11 = LEVEL 4 HATER IV-37. 9 9 9 3 1 6 6 8 6 7 8 9 7 10 10 10 10 10 11 HODEL OUTLINE GENERAL HABITAT Consideration Primary Vegetation Specific data Class Closed Forest Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Young Stands Dec-iduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Young Stands Cottonwood, Medium-Aged Stands Cottonwood, Old Stands Open Forest-Woodland Coniferous Forest, White Value (Incidence) 8 10 5 8 5 10 10 10 Spruce, Short Stands 2 Deciduous Forest, Mixed Forest, Medium-Aged Stands 1 Coniferous Forest, White Spruce, Tall Stands 2 Deciduous Forest, Mixed Forest, Old Stands 1 Cottonwood, Medium-Aged Stands· 4 Cottonwood, Old Stands 4 Closed Forest (Black Spruce Mountain Hemlock) Black Spruce, Short Strands 8 Black Spruce, Tall Stands 8 Mountain Hemlock, Tall St~nas 8 Open Forest-Woodland (Black Spruce) Black Spruce, Short Stands 11 IV-38 Value (Proximity) Salt Water Wetlands Salt Grassland Low Shrub Tidal Marsh Tall Shrubs Alder Alder-Willow Low Shrub Willow Resin Birch Grassland Upland Grass Tundra Sedge-Grass Herbaceous Shrub Mat and Cushion Fresh Water Wetlands Sphagnum-Bog Sphagnum-Shrub Bog Cultural Features Cultural Influences Barren Mud Fla.ts Rock Permanent Snow and Ice Snowfield Glacier Water MODEL SUHMATION RULES MAP 1 Ranking Category 1 = Mixed Forest -Open 2 = Conifer Forest -Open 3 = Tall Shrub Alder-Willow 4 = Deciduous Forest -Open 5 Mixed Forest -Closed 6 Low Shrubs -Willow Resin Birch IV-39 7 9 7 13 3 6 14 15 15 15 15 12 12 16 16 16 16 16 17 7 = Salt Water Wetland, Grassland, and Tidal Flats 8 = Conifer Forest -Closed 9 Low Shrub Salt Water Wetland 10 = Deciduous Forest -Closed 11 Short Black Spruce -Open 12 = Sphagnum Bog 13 Tall Shrub Alder 14 = Grassland 15 = Tundra -Special Consideration 16 = Low Diversity/Capability 17 = Lakes and Streams Kt\.P 2 Aggregated Ranking Original Ranking Category 1 2 3 4 5 17 15 16 8-14 1-7 Lakes and Streams Tundra Special Consideration Low Diversity/Capability Moderate Diversity/Capability High Diversity/Capability IV-40 MODEL OUTLINE WETLANDS MATRIX TALKEETNA SUBBASIN SOIL TYPE HYDROLOGY LAND FORM SOIL DRAINAGE CHARACTERISTICS lH (lj 0 ~ +-1 +-1 ~ ~ (lj ~ 0 Ul 0 ~ (lj ~ ,..!<: ...-i ~ ,.c:: 0 .,-j •r-l ACTIVE •r-l ...-i u ,..!<: ...-i 0 ...-i (lj •r-1 •r-l Ul Ul STREAH ORDER IS FLOODPLAIN, •r-l Ul Ul ,.c:: ...-i ~ ~ ~ I u Ul H 1-3 AND ACTIVE Ul (lj ~ I ~ Q) ~ QJ "0 ~ •r-1 (lj ~.J ,.c:: STREAM DISCHARGE CHANNEL 0 ...-i H +-1 '1:) ...-i ...-i Q) ~J lH .~ (lj .,-j ~ (lj (lj QJ 0 PROFILE IS OR •r-l r:: ...-i :>.. r:: r:: ,..!<: ...-i Q) ::l ...-i +-1 +-1 ...-i r-i LOHLAND RIVER BASE VP p SP HW H SE EX VEGETATION TYPE (lj ::l p. ,.c:: Q) ::l ~ (lj ...-i ~ H Ul u t:l ~ E-l <I! Closed Forest (GE 50% Crown Cover) Coniferous-White Spruce- Short 0 0 0 0 0 0 0 0 13 1 1 7 0 0 0 0 0 Coniferous-White Spruce- Tall 0 0 0 0 0 0 0 0 13 1 1 0 0 0 0 0 0 Coniferous-Black Spruce- Short 0 0 0 13 1 1 7 0 0 0 0 0 Coniferous-Black Spruce- Tall 0 0 0 13 1 1 7 0 0 0 0 0 Coniferous-Hemlock-Short 0 0 0 13 1 0 0 0 0 0 0 0 Coniferous-Hemlock-Tall 0 0 0 13 1 0 0 0 0 0 0 0 Deciduous/Mixed-Young 0 0 0 0 0 0 0 0 13 3 3 7 0 0 0 0 0 Deciduous/Mixed-Medium Age 0 0 0 0 0 0 0 0 13 3 3 7 0 0 0 0 0 Deciduous/Mixed-Old 0 0 0 0 0 0 0 0 13 3 3 7 0 0 0 0 0 Cottonwood-Young 0 0 0 13 2 2 7 0 0 0 0 0 Cottonwood-Medium Age 0 0 0 13 2 3 7 0 0 0 0 0 Cottonwood-Old 0 0 0 13 2 3 7 0 0 0 0 0 MODEL OUTLINE HETLANDS f'fATRIX TALKEETNA SUBBASIN (Cant.) HYDROLOGY LAND FOR.H SOIL DRAINAGE CHARACTERISTICS SOIL TYPE 'H C1l 0 !:l .j.J .j.J ~ ~ C1l @ 0 (}) 0 ~ ~ ~ rl ~ ..c 0 -H •r-l ACTIVE •r-l .-I (J ~ .-I 0 .-I C1l •r-l •r-l Ul Ul STREAM ORDER IS FLOODPLAIN, •r-l ·w (I) ..c .-I I ~ I ~ u Ul (I) 1-1 1-3 AND ACTIVE Ul C1l I I l=l Q) 1=: Q) "d !:l •r-l Ill C1l .j.J ..c STREAN DISCHARGE CHANNEL 0 .-I 1-1 .j.J "d rl rl Q) -1-1 'H .-I aJ •r-l !:l aJ aJ ~ 0 PROFILE IS OR •r-l "-H ffi .-I :>-. !:l !:l .-I ·(J ::I .-I -1-1 -1-1 .-1 .-I LOWLAND RIVER BASE VP p SP HW \v SE EX VEGETATION TYPE ~ ~ p. ..c Q) ::I ::I Cll ~ (I) u Q ~ ~ [-1 Open Forest (GE 10% to LT 50% Crown Cover) Coniferous-~1ite Spruce- Short 0 0 0 0 0 0 0 0 13 1 1 7 0 0 0 0 0 H Coniferous-White Spruce-<: I Tall 0 0 0 0 0 0 0 0 13 1 1 0 0 0 0 0 0 +:-- t-J Coniferous-Black Spruce- Short 0 0 0 13 4 4 7 0 0 0 0 0 Deciduous/Hixed-Medium Age 0 0 0 0 0 0 0 0 13 3 3 7 0 0 0 0 0 Deciduous/Mixed-Old 0 0 o. 0 0 0 0 0 13 3 3 7 0 0 0 0 0 Cottonwood-Medium Age 0 0 0 13 2 3 7 0 0 0 0 0 Cottonwood-Old 0 0 0 13 2 3 7 0 0 0 0 0 Non-Forest (LT 10.% Crown Cover) Saltwater Wetland Grassland 0 0 0 9 9 9 9 0 0 0 0 0 Lo~.;r Shrub 0 0 0 8 8 8 8 0 0 0 0 0 Tidal Marsh 0 0 0 10 10 10 10 0 0 0 0 0 Tall Shrub Alder 0 0 0 0 0 0 0 0 13 5 5 7 0 0 0 0 0 Alder-Willow 0 0 0 13 5 5 7 0 0 0 0 0 Low Shrub Willow-Resin Birch 0 0 0 13 5 5 7 0 0 0 0 0 H <: I .j::-- w HODEL OUTLINE l.JFTI .t\NDS M.t\TP1X . ~ . \. ' TALKEETNA SUBBASIN (Cont.) VEGETATION TYPE Non-Forest (LT 10% Crown Cover) (Continued) Grassland Grassland Tundra Sedge-Grass Herbaceous Shrub Mat-Cushion Freshwater Sphagnum Bog Sphagnum Shrub Bog Cultural Cultural Influence Barren Hud Flats Rock Snow Snow Field Glacier •r-1 ~ til ~ 0 lH ·r-1 ...-i ro ~ 0 0 0 0 0 0 0 0 0 SOIL TYPE lH ro 0 ~ ~ ~ ~~ ~ ro ~ 0 0 ~ ~ .!<: ~ ..c 0 ..... ·r-1 ...-i tJ .!<: r-1 ...-i ro ..... •r-1 (/) (/) (/) ..c: r-1 I I I u (/) ro ro ro ~ I !=: Ql "0 !=: •r-1 C\1 ~ r-1 H ~ "0 r-1 ...-i Ql ...-i ro ·r-1 !=: ro ro· Ql ..... !=: ...-i >. !=: . ~ .!<: tJ Ql ;:1 ...-i .j.J ~ ...-i ;:1. p. ..c: Ql i1 ;:1 ro H U) u ~ ~ H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ' HYDROLOGY LAND FORM SOIL DRAINAGE CHARACTERISTICS til ...-i ·r-1 0 ACTIVE (/) STREAM ORDER IS FLOODPLAIN, H 1-3 AND Ql ACTIVE ..c S'fREAH DISCHARGE ~ CHANNEL 0 PROFILE IS OR r-l LOHLAND r-1 RIVER BASE VP p SP MH H SE EX < 13 6 6 7 0 0 0 0 0 13 6 6 6 0 0 0 0 0 13 6 6 6 0 0 0 0 0 13 6 5 5 0 0 0 0 0 13 6 6 6 0 0 0 0 0 13 6 6 6 0 0 0 0 0 13 5 5 5 0 0 0 0 0 13 0 0 0 0 0 0 0 0 11 11 11 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MODEL OUTLINE \.JETLANDS '1-IATRIX TALKEETNA SUBBASIN (Cant.) SOIL TYPE HYDROLOGY LAND FORM SOIL DRAINAGE CHARACTERISTICS 4-1 rd 0 r= 4-J 4-J ,!<! ~ cU l:l 0 (/) 0 @ cU ~ ~ .-l ~ ..c 0 ..-i ..-i •.-l .-l (.) ~ .-l 0 ACTIVE .-l cU •.-l •.-l Cll.Cil STREAM ORDER IS FLOODPLAIN, •.-l (/) (/) ..c .-l fu ~ I I L) (/) 1-1 1-3 AND (/) qJ rd fu I r= ()) ACTIVE r= ()) "'0 r= ·.-l qJ w .c:: STREAM DISCHARGE 0 .-l 1-1 w '"CI r-1 .-l Q.) w CHANNEL 4-1 .-l qJ •.-l r= rd 1\1 Q.) 0 PROFILE IS OR •rl ..-i r= .-l :>-. r= l:l ~ .-l (.) Q.) ;:1 .-l 4-J 4-J .-l .-l Lm.JLAND VEGETATION TYPE qJ ;:1 p. ..c Q.) ;:1 £ (\J .-l RIVER BASE ·vp p SP J:viW \-1 ·sE EX ~ ....:! (/) L) Cl ;I:! H <!! Water Lake GE 40 Acres 15 15 15 15 15 15 15 15 Lake GE 10 Acres and LT 40 Acres 15 15 15 15 15 15 115 15 H <: Stream or River GE 165 I ..,.. Feet and LT 660 ..,.. Feet Wide 14 14 14 14 14 14 14 14 River GE 660 Feet Wide 14 14 14 14 14 14 14 14 Stream or River LT 165 Feet Wide 13 13 13 13 13 13 13 13 WETLAND TYPE CODES 0 Non Wetland 1-7 Palustrine Wetland 1 Forested Needle Leaved Evergreen -Picea mariana (PF04) 2 Forested Broad Leaved Deciduous -Populus balsamifera (PF01) 3 Forested Needle Leaved Evergreen and Broad Leaved Deciduous (PF04 and PF01) 4 Scrub/Shrub Needle Leaved Evergreen -Picea mariana (PSS4) 5 Scrub/Shrub Broad Leaved Deciduous (PSSl) 6 Emergent Persistent -(Carex) (PEMS) 7 Potential Palustrian Wetland Inclusions 8-12 Estuarine Wetland 8 Intertidal Scrub/Shrub Broad Leaved Deciduous -Myrica (E2SS1) 9 Intertidal Emergent Persistent -Calamagrostis (EAA1) 10 Intertidal Emergent Persistent -Scirpus, Limbia, or Sargeniaum (E2EM1) 11 Intertidal unconsolidated Shore Mud Flat (E2FL3) 12 Potential Estuarine Wetland Inclusions Riverine 13 Upper perennial Streambed Cobbl~/Gravel (R3SB1) 14 Lower Perennial Streambed/Unconsolidated Bottom (R2UB1) Lacustrine 15 Limnetic Unconsolidated Bottom Cobble/Gravel (L1UB1) IV-45 WETL&~S II AGGREGATED TO TWELVE LEVELS TALKEETNA SUBBASIN Aggregated Ranking 1 2 3 4 5 6 7 8 9 10 11 12 Original Ranking 0 1 2-3 4-5 6 7 8 9 10 11 13 14 Description Non-~vetland Palustrine -Forested Needle Leaved Evergreen - Palustrine -Forested Needle Leaved Evergreen and Broad Leaved Deciduous Palustrine -Scrub/Shrub Needle Leaved Evergreen and Broad Leaved Deciduous Palustrine -Emergent Persistant Palustrine -Potential Palustrine Wetland Inclusions Estuarine -Intertidal Scrub or Shrub Broad Leaved Dedicuous Estuarine -Intertidal Emergent Persistant -Elymus Estuarine -Intertidal Emergent Persistant -Scirpus Estuarine -Intertidal Mud Flat Riverine -Upper Perennial Stream Bed Lacustrine -Littoral and Limnetic (Unconsolidated Bottom Cobble/Gravel IV-46 HODEL OUTLINE HETL BELU ANDS MATRIX GA SUBBASIN VEGETATION TYPE Closed Forest (GE 50% Crown Cover) Coniferous-White Spruce- Short Coniferous-White Spruce- Tall Coniferous-Black Spruce- Short Coniferous-Black Spruce- Tall Coniferous-Hemlock-Short Coniferous-Hemlock-Tall Deciduous/Mixed-Young Deciduous/Mixed-Medium Age Deciduous/Mixed-Old Cottonwood-Young Cottonwood-Medium Age Cottonwood-Old Open Forest (GE 10% to LT 50% Crown Cover) Coniferous-White Spruce- Short Coniferous-Hhite Spruce- Tall Coniferous-Black Spruce- Short t;l en z ~ 0 ..:I f:l ....:1 H ~ u ~ H 0 0 0 0 f) 0 0 0 0 0 0 0 f) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SOIL TYPE ~ <: 0 z ~ ~ ::4 ::4 0 ~ ~ H u ....:1 H H en en ::D ....:1 I, ~ u en ~ ~ ~ ~ H ~ H ..:I z ·z r:LI ~ f-1 E-i P-1 r.il ~ ~ Cl.l u A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o. 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 LANDFO(lli SOIL DRAINAGE Ci~RACTERISTICS ::4 ~ Cl.l ....:1 H H ....:1 0 ACTIVE .en en ~ I FLOODPLAIN, ~ z I f-1 ::D ACTIVE r.il H CHANNEL ~ 0 OR ~ ..:I ~ RIVER BAR VP p SP MW H SE EX E-:1 0 1 1 7 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 7 0 0 0 0 0 r 1 7 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 3 7 0 0 0 0 0 0 3 3 7 0 0 0 0 0 0 3 3 7 0 0 0 0 0 2 2 7 0 0 0 0 0 2 3 7 0 0 0 0 0 2 3 7 0 0 0 0 0 0 1 1 7 0 0 0 0 0 0 1 1 0 0 0 0 0 0 4 4 7 0 0 0 0 0 H .q I .j::-- 00 HODEL OUTLINE WETLANDS l-1ATRIX BELUGA SUBBASIN (Continued) VEGETATION TYPE Open Forest (GE 10% to LT 50% Crown Cover) (Cont.) Deciduous/hixed-Medium Age Deciduous/Mixed-Old Cottonwood-Hedium Age Cottonwood-Old Non-Forest (LT 10% Crown Cover) Saltwater Wetland Grassland Low Shrub Tidal Tall Shrub Alder Alder-Willow Low Shrub Willow-Resin Birch Grassland Grassland Tundra Sedge-Grass Herbaceous Shrub Mat-Cushion Freshwater Sphagnum llog Sphagnum Shrub Bog 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SOIL TYPE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ·o o 0 0 0 0 0 0 LANDFORM ACTIVE FLOODPLAIN, ACTIVE CHANNEL OR ~IVER BAR 3 3 2 2 9 8 10 5 6 6 6 6 6 6 5 SOIL DRAINAGE Cl~CTERISTICS VP, 3 3 3 3 p 7 7 7 7 SP MW 0 0 0 0 0 0 0 0 H SE EX 0 0 0 0 0 0 0 0 0 0 0 0 9 9 0 0 0 0 0 8 8 0 0 0 0 0 10 10 0 0 0 0 0 5 5 5 6 7 7 7 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 0 5 5 0 0 6 6 0 0 6 6 5 5 0 0 0 0 0 0 0 0 0 0 H <: I .j:-- 1.0 HODEL OUTLINE DS HATRIX lvETLAN ·BELUG A SUBBASIN (Continued) VEGETATION TYPE Cultural Cultural Influence Barren Mud Flats Rock Snow Snow Field Glacier Water Lake GE 40 Acres Lake GE 10 Acres and LT 40 Acres Stream or River GE 165 Feet and LT 660 Feet Wide River GE 660 Feet Wide Stream or River LT 165 Feet Wide ; SOIL TYPE r:r.. ~ 0 z H ~ ~ ~ 0 ~ ~ ~ H u t-1 H H t2 t/.1 t/.1 ::q t-1 J: ~ u t/.1 t/.1 ~ I z rx.1 ~ z ~ 0 t-1 H ~ f:1 t-1 H H ~ ~ z ~ u [.iJ H H :=> P; I-Ll ~ ~ t-1 t/.1 u t=l 0 0 0 0 0 0 LANDFORM SOIL DRAINAGE CHARACTERISTICS ~ 0 t/.1 ~ 1-1 H H 1-1 0 ACTIVE t/.1 t/.1 J: I FLOODPL~IN, ~ z [-rl ::q ACTIVE [.iJ H. CHANNEL ~ 0 OR ~ 1-1 ~· RIVER DAR VP p SP MW \v SE EX H ' 0 0 0 0 0 0 0 0 11 11 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o· 0 0 0 0 0 0 0 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 13 13 13 13 13 13 13 13 ' WETLAND TYPE CODES 0 Non Wetland 1-7 Palustrine 1 Forested Ne.edle-leaved Evergreen -Picea mariana (PF04) 2 Forested Broad-leaved Deciduous -Populus balsamifera (PFOl) 3 Forested Needle-leaved Evergreen and Broad-leaved Deciduous (PF04 and PFOl) 4 Scrub/Shrub Needle-leaved Evergreen -Picea mariana (PSS4) 5 ·scrub/Shrub Broad-leaved Deciduous (PSSl) 6 Emergent Persistant -Carex (PEMl) 7 Potential Palust~ine Wetland Inclusions 8-12 Estuarine Wetland 8 Intertidal Scrub/Sh-rub Broad-leaved Deciduous -Myrica (E2SS1) 9 Intertidal Emergent Persistant -Calamagrostis (EMl) 10 Intertidal Emergent Persistant -Scirpus, Limbia, or Spargeniaum (E2El) 11 Intertidal Unconsolidated Shore Mud Flat (E2FL3) 12 Potential Estuarine Wetland Inclusions 13-14 Riverine 13 Upper Perennial Unconsolidated Bottom Cobble/Gravel (R3SB1) 14 Lower Perennial Unconsolidated Bottom (R2UB1) 15 Lacustrine 15 Limnetic Unconsolidated Bottom Cobble/Gravel (LlUBl) . IV-50 MODEL OUTLINE ROAD SUITABILITY TALKEETNA SUBBASIN Consideration Landform Type (Rating 1 to 10, 1 is best) Specific Data Class Glacial Value (Incidence) Moraine 4 Till 4 Drumlin Drumlin/Drumloid 3 Rock Drumlin 7 Fluvioglacial Outwash 3 Abandoned Outwash Channel 3 Remnant Subglacial Stream Valley 4 Kame Complex 2 Esker 1 Crevasse Filling 1 Side Glacial Drainage Channel 3 Flute 3 Aeolian Dune Littoral Longshore Bar Beach Barrier Spit Delta Tidal Flat Coastal Plain Fluvial Active Channel River Bar Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposit Mass Wasting Colluvium Talus Landslide Deposit Rock Glacier IV-51 7 8 8 8 9 9 9 8 6 7 4 3 2 9 10 10 10 10 Value (Proximity) Slope Gradient (Rating is 1 to 40, 1 is best) Geologic Hazard (Rating is 1 to 10, 1 is best) Soil Characteristics (Rating is 1 to 10, 1 is best) (Rating is 1 to 15, 1 is best) Mine Tailings Tectonic Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow Slope Gradient Level or Nearly Level Gently Sloping Undulating Sloping (Moderately) Rolling Strongly Sloping Hilly Moderately Steep Steep Very Steep Extremely Steep Water Ice Primary Potential Flood Zone Primary Flood Zone/ Wave Zone Secondary Potential Flood Zone Secondary Flood Zone/ Wave Zone Outburst Flood Zone Catastrophic Wave Zone Landslide Zone Varying Particle Size Unstable Ground Avalanche Track Limitations for Local Roads and Streets Slight Moderate Severe Water Drainage Excessively Drained Somewhat Excessively Drained Well Drained IV-52 5 7 10 10 10 10 1 2 2 3 3 5 5 15 20 30 30 30 30 10 10 5 5 10 10 10 5 10 10 1 5 10 10 1 1 1 (Rating is 1 to 10, 1 is best) (Rating is 1 to 15, 1 is best) Vegetation Cover (Rating is 1 to. 40, 1 is best) Moderately Well Drained Some\\'hat Poorly Drained Poorly Drained Very Poorly Drained Ice Water Source Road Fill Good Fair Poor Water From Good If < 1/2 Mile If ) 1/2 Mile ( 1 Mile If > 1 Mile < 2 Miles If > 1 Miles-< 3 Miles If > 3 Miles ( 4 Miles If > 4 Miles ( 5 Miles If > 5 Miles Closed Forest (GE 50% Crown Cover) Open Forest (GE 10% to LT 50% Crown Cover) Non Forest (LT 10% Crown Cover) Salt ~~a ter Wetland Grassland Low Shrub Tidal Marsh Tall Shrub Alder Alder-Willow Low Shrub Willow-Resin Birch Grassland Grassland Tundra Sedge-Grass Herbaceous Shrub Mat-Cushion Freshwater Sphagnum Bog Shagnum Shrub Bog Cultural Cultural Influence IV-53 2 5 10 15 15 15 1 5 10 10 1 2 4 6 8 10 15 10 6 40 40 40 4 4 2 1 20 15 20 20 30 30 1 MODEL SUM}L~TION RULES High Hoderate High: ~·[ode rate Low Very Low Extremely Low Barren Hud Flats Rock Snow Snow Field Glacier Water Lake GE 40 Acres Lake GE 10 Acres and LT 40 Acres Stream or River GE 165 Feet Wide and LT 660 Feet Wide River GE 600 Feet Wide Stream or River LT 165 Feet Wide Less 11 16 - 31 - 61 - 101 - than 10 15 30 60 100 150 IV-54 40 40 40 40 40 40 40 40 40 MODEL OUTLINE COLOS -TALKEETNA SUBBASIN Using cell values from the Road Suitability Model, Colas determined the shortest distance at the least cost for these points: 1) Old Skwentn~ Road House 2) Skwentna 3) Alexander 4) Mouth of Kroto Creek 5) Moose River and Petersville Road 6) Parker Lake Five Colas Runs Between Points: 1-3 1-2 2-5 4-5 5-6 6861770N/586840E 687~530N/590530E 6812100N/620790E 6842900N/642000E 6911580N/632950E 6880000N/630000E Output showed 9 levels of Optimality from highest to least for each corridor. IV-55 MODEL OUTLINE ROAD SUITABILITY BELUGA SUBBASIN Consideration Landform Type (Rating 1 to 10, 1 is best) Specific Data Class Glacial Value (Incidence) Moraine 1 Till 1 Drumlin Drumlin/Drumloid 1 Rock Drumlin 7 Fluvioglacial Outwash 3 Abandoned Outwash Channel 3 Remnant Subglacial Stream Valley 4 Kame Complex 2 Esker 1 Crevasse Filling 1 Side Glacial Drainage Channel 3 Flute 3 Aeolian Dune Littoral Longshore Bar Beach Barrier Spit Delta Tidal Flat Coastal Plain Fluvial Active Channel River Bar Floodplain Active Abandoned Alluvial Plain Alluvial Fan/Cone Lacustrine Deposit Mass Wasting Colluvium Talus Landslide Deposit Rock Glacier IV-56 7 8 8 8 9 9 9 8 10 7 4 3 2 9 10 10 10 10 Value (Proximity) Slope Gradient (Rating is 1 to 60,' 1 is best) Geologic Hazard (Rating is 1 to 10, 1 is best) Soil Characteristics (Rating is 1 to 10, 1 is best) (Rating is 1 to 15, 1 is best) Mine Tailings Tectonic Uplift Upland Valley Mountain Sideslope Mountain Ridgetop Waterbody Ice and Snow Slope Gradient Level or Nearly Level Gently Sloping Undulating Sloping (Moderately) Rolling Strongly Sloping Hilly Moderately Steep Steep Very Steep Extremely Steep Primary Potential Flood Zone Primary Flood Zone/ Catastrophic Wave Zone Secondary Potential Flood Zone Outburst Flood Zone Catastrophic Wave Zone Landslide Zone Varying Particle Size Unstable Ground Avalanche Track Limitations for Local Roads and Streets Slight Moderate Severe Drainage Excessively Drained Some\¥ha t Excessively Drained Well Drained Moderately Well Drained Somewhat Poorly Drained Poorly Drained Very Poorly Drained IV-57 5 7 10 10 10 10 1 5 5 15 15 25 25 40 50 60 60 10 10 5 10 10 10 5 10 10 1 5 10 1 1 1 2 5 10 15 (Rating is 1 to 10, Source Road Fill 1 is best) Good 1 Fair 5 Poor 10 Water 10 (Rating is 1 to 15, From Good 1 is best) If ( 1/2 Mile 1 If > 1/2 Mile < 1 Mile 2 If > 1 Mile < 2 Miles 4 If > 2 Miles-< 3 Miles 6 If > 3 Miles Z 4 Miles 8 If > 4 Miles ( 5 Miles 10 If > 5 Miles 15 Vegetation Cover Closed Forest (Rating is 1 to 150 (GE 50% Crown Cover) 5 1 is best) Open Forest (GE 10% to LT 50% Crown Cover) 4 Non Forest (LT 10% Crown Cover) Salt Water Wetland Grassland 80 Low Shrub 80 Tidal Marsh 80 Tall Shrub Alder 3 Alder-Willow 3 Low Shrub Willmv-Resin Birch 2 Grassland Grassland 1 Tundra Sedge-Grass 20 Herbaceous 15 Shrub 20 Mat-Cushion 20 Freshwater Sphagnum Bog 70 Shagnum Shrub Bog 70 Cultural Cultural Influence 1 Barren Mud Flats 80 Rock 80 Snow Snow Field 100 Glacier 100 Water Lake GE 40 Acres 150 IV-58 Hydrology MODEL SUMMATION RULES Class I Class II Class III Class IV Class v Class VI Class VII Class VIII Class IX Lake GE 10 Acres and LT 40 Acres Stream or River GE 165 Feet Wide and LT 660 Feet Wide River GE 600 Feet Wide Stream Order 1-8 Stream or River LT 165 Feet Wide 0-10 11-20 21-30 31-40 41-60 61-80 81-100 101-130 GT 130 IV-59 150 150 150 100 Chapter V Computer Mapping Introduction }fethodology Haps, Legends and.~ Statistics Haps Legends and Statistics V. CO}~UTER MAPPING A. Introduction The automated data files for the two subbasins were used to produce a variety of computer maps at the same scale. The two types of computer maps produced for this study were maps of basic data and maps of modeled outputs. Basic data maps portray information directly from the data entered into the computer in the form of manuscript maps, codes, and expansion matrices. Both the original mapped phenomena, such as soil type, and its matrixed attributes, such as soil drainage characteristics, are shown on these maps. They illustrte select physical components of the landscape as well as land use, administrative, and infrastruction considerations. Hodeled outputs utilize information contained in the data base, but these data have been manipulated, restructured, and weighted according to the models outlined in the previous section. As noted previously, some models also utilize classes of information generated by separate sub-models. The model maps illustrate environmental assessments and evaluations of the region expressed in terms of general opportunities and constraints and specific land capability and suitability. Some of the maps identified in this section were produced in a pen plotter format with lines showing boundaries and numeric codes showing types or classes of data. The rest of the computer maps were produced in shaded grey tone symbolism. These maps illustrate basic and modeled data which are in a grid format rather than the original line, point, and polygon format. V-1 B. Hethodology Two types of maps were created to illustrate basic environmental conditions. These are pen plotter maps and line printer maps. The map set representing Vegetation was output in a pen plotter format on myla·r. It illustrated the polygon configuration of the original mapped data at a scale of 1:63,360. This enables the vegetation maps to be overlayed on their corresponding 15 quadrangle maps. The rest of the map sets which display basic environmental conditions were produced in a shaded grey tone format on a line printer. Six map sets were common to both subbasins. A seventh map set for Talkeetna Subbasin was also made. These maps, which represented gridded data, were also produced at a scale of 1:63,360. They were printed on paper panels which fitted together to form individual maps illustrating the two entire study areas. The computer maps which were produced to illustrate basic environmental conditions in the two study areas are listed on the following table: V-2 COMPUTER MAPS BASIC lL~D INTERPRETED ENVIRONMENTAL CO~~ITIONS Pen Plotter Maps Vegetation Line Printer Maps Soil Drainage Soil Limitations Dwellings Range Resources· Soil Slope Forest Resources for Important Farmland Important Grazing Lands V-3 Talkeetna X X X X X X X X Beluga X X X X X X X Computer maps illustrating the results of the application of theoretical models to the original data base were also produced. They illustrate data transformed and analyzed in a grid cell configuration. All are based on the conceptual models outlined in the previous chapter of this report. These models were programmed to manipulate the basic, matrixed, and derived grid data in the automated system. This process resulted in the creation of a data file for each model which stored accumulated values by cells. All of the modeled data was printed with a grey tone format at a scale of 1:63,360 on paper panels which fitted together to form individual maps illustrating the two entire study areas. The computer maps which were produced to 'illustrate interpreted and evaluated environmental conditions in th~ study area,are as follows: V-4 COMPUTER MAPS MODELED ENVIRONMENTAL CONDITIONS Same Model Settlement Talkeetna Beluga Format Capability for Accessed Large Lot Residential Development X Capability for Moderate/High Density Residential Development X X X Capability for Low Density Remote Residential Development X X X Other Groundwater Availability X X X Economic Agriculture/Forestry X X X Erosion Potential X X X Moose Habitat X X X General Habitat I X X X General Habitat II X X X Wetlands I X X Wetlands II X Road Suitability X X Co los X V-5 C. Legends and Statistics Each of the maps produced for the two subbasins were accompanied by a legend and statistics sheets describing the map symbolism and the areal extent of the mapped phenomena. A typed sheet for each of the maps, except vegetation, is included at the end of this chapter. In the case of the vegetation maps produced for the study area, some thirty-five classes of vegetation were shown. Some of the maps portray qualitative data, others quantitative data. In general, the basic data maps are qualitative in nature, focusing on type rather than rating. However, where appropriate, the gray tone hierarchy was used to give a visual impression of importance or severity. The modeled maps are generally quantitative in nature, typically involving the ranking of areas within the region for their capability for specific types of land use. On most of the maps, the gray tone symbolism was selected to portray the ranking. In general, the sequence of light to dark was used to represent the sequence from high to low capability. The maps illustrating settlement capability, for example, display ranked data in four classes from high to incapable. They also display water as a separate data class. The vegetation maps were plotted on mylar and registered to the map modules comprising the study area. The remaining computer maps portray data for the individual entire subbasins. They display gridded information. As noted earlier, the grid multi-variable files were created for each study area as a whole. Thus, the line printer grid maps, whether of basic data or of modeled outputs, represent the entire study area for each subbasin on one map. Legends, which explain the information represented on the V-6 line printer maps and statistical summaries which describe the areal extent of the mapped characteristics in acreage and percentage are listed on the following pages. The legends and statistics for Talkeetna Subbasin line printer maps are listed first, followed by the legends and statistics for the Beluga Subbasin line printer maps: V-7 CLASS Excessively Drained Well Drained SOIL DRAINAGE SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 19,750 1,220,630 Moderately Well Drained 5,740 Poorly Drained 399,310 Very Poorly Drained 571,880 Glacier 2,110 Water 99,830 CLASS TOTAL AREA (ACRES) Non-Vegetated 123,210 Closed Forests 795,400 Open Forests 131,330 Fresh Water Wetland 523,890 Salt Water Wetland 11,380 Shrub 640,450 V-8 % % .85% 52.63% .25% 17.22% 24.66% .09% 4.30% % 5.31% 34.30% 5.66% 22.59% .49% 27.61% Tundra Grassland V-9 64,460 29,130 2.78% 1.26% CLASS Sight Moderate Severe Water SOIL LIMITATIONS FOR DWELLINGS SUSITNA RIVER BASIN TALKEETNA SUBBASIN V-10 TOTAL AREA (ACRES) 453,070 179,120 1,587,230 99,830 % 19.54% 7. 72% 68.44% 4.30% I -' RANGE RESOURCES SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) % Non-Vegetated 123,210 5.31% Closed Forests 795,400 34.30% Open Forests 131,330 5.66% Fresh Water Wetland 523,890 22.59% Salt Water Wetland 11,380 .49% Shrub 640,450 27.61% Tundra 64,460 2.78% Grassland 29,130 1.26% V-11 CLASS 0-3% Slope 3-7% Slope 7-12% Slope 12-20i~ Slope 20-30% Slope 30-45% Slope > 45% Slope ~vater Glacier SLOPE SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 1,001,010 482,410 193,860 179,120 121,250 142,170 97,490 99,830 2,110 V-12 % 43.16% 20.81% 8.36% 7.72% 5.23% 6.13% 4.20% 4.30% .09% CLASS FOREST RESOURCES SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) Closed White Spruce/Hemlock 15,460 Open White Spruce 66,540 Closed Black Spruce 138,450 Open Black Spruce 5 ,2.90 Closed Mixed Forest 635,610 Open Mixed Forest 57,760 Closed Cottonwood 5,880 Open Cottonwood 1,740 Non-Forests 1,392,520 . V-13 % .67% 2.87% 5.97% .23% 27.41% 2.49% .25% .07% 60.04% CLASS Class A Class B Class c Class D Class E Class F Waterbody IMPORTANT FARMLAND SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 102,510 168,010 47,420 51,900 435,680 1,413,900 99,830 V-14 % 4.42% 7.24%. 2.04% 2.24% 18.79% 60.97% 4.30% CLASS Excellent Good Fair Poor Water IMPORTANT GRAZING LANDS (POTENTIAL) }~P SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 693,080 244,550 394,320 887,470 99,'830 V-1~ % 29.89% 10.54% 17.00% 38.27% 4.30% GROUNDWATER AVAILABILITY MAP SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS Yield Area 1 (Lowest) Yield Area 2 Yield Area 3 (Highest) V-16 TOTAL AREA (ACRES) 84,430 563,460 671,360 % 3.64% 67.41% 28.95% ECONOMIC AGRICULTURE/FORESTRY SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) Class III Soil and Select Forest Type 79,350 Class II Soil and Select Forest Type 87,170 Select Forest Type 305,170 Class IIT Soils 217,310 Class II Soils 288,340 Other Lands 1,242,080 \vater 99,830 V-17 % 3.42% 3.76% 13.16% 9.37% 12.43% 53.56% 4.30% CAPABILITY FOR ACCESSED LARGE LOT RESIDENTIAL DEVELOPMENT MAP SUSITNA RIVER BASIN CLASS High Moderate Low Incapable TALKEETNA SUBBASIN TOTAL AREA (ACRES) % 199,790 8.61% 87,310 3.77% 710,360 30.63% 1,321,790 56.99% V-18 CAPABILITY FOR HODERATE/HIGH DENSITY RESIDENTIAL DEVELOPMENT MAP SUSITNA RIVER BASIN CLASS High Moderate Low Incapable TALKEETNA SUBBASIN TOTAL AREA (ACRES) V-19 417,640 182,120 397,450 1,322,040 % 18.01% 7.85% 17.14% 57.00% CAPABILITY FOR LOW DENSITY RE110TE RESIDENTIAL DEVELOPMENT MAP SUSITNA RIVER BASIN CLASS High :Moderate Incapable TALKEETNA SUBBASIN TOTAL AREA (ACRES) V-20 5,670 447,030 435,590 . 1,430,960 % .24% 19.28% 18.78% 61.70% CLASS Water 0-3 Tons/Acre/Year 4-7 Tons/Acre/Year 8-15 Tons/Acre/Year 16-25 Tons/Acre/Year 26-40 Tons/Acre/Year > 40 Tons/Acre/Year EROSION MAP SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 99,830 1,103,530 421,130 183,230 162,990 108,310 240,230 V-21 i. 4.30% 47.58% 18.16% 7.90% 7.03% 4.67% 10.36% CLASS Level 1 Level 2 Level 3 Level 4 MOOSE HABITAT SUSITNA RIVER BASIN . TALKEETNA SUBBASIN TOTAL AREA (ACRES) Mod/High WR, (S/S/F) Range 1,543,730 Mod/High (S/S/F) Range No WR 514,580 Low to No Habitat 161,110 Water 99,830 Abbreviations: WR = Winter Range (S/S/F) = Spring/Summer/Fall V-22 % 66.56% 22.19% 6.95% 4.30% GENERAL HABITAT I SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) High Diversity/Capability Mixed Forest -Open Conifer Forest -Open Tall Shrub Alder -Willow Deciduous Forest -Open Mixed Forest -Closed Low Shrub -Willow Resin Birch Salt Water Wetland, Grassland, Tidal Flats Moderate Diversity/Capability Conifer Forest -Closed Lo1" Shrub Salt Water Wetland Deciduous Forest -Closed Short Black Spruce -Open Sphagnum Bog Tall Shrub Alder and V-23 57,760 67,070 136,280 1,740 628,770 13,250 8,870 153,850 2,510 12,880 5,290 522,780 487,700 % 2.49% 2.89% 5.88% .08% 27.11% .57% .38% 6.63% .11% .56% .23% 22.54% 21.03% Grassland Tundra Special Consideration Tundra Low Diversity/Capability Low Diversity/Capability Water Lakes and Streams V-24 29,130 1.26% 68,160 2.94% 23,380 1.01% 99,830 4.30% GENERAL HABITAT II SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) High Diversity/Capability 913,740 Moderate Diversity/Capability 1,214,140 Low Diversity/Capability 23,380 Tundra Special Consideration 68,160 Lakes and Streams 99,830 V-25 % 39.40% 52.35% 1.01% 2.94% 4.30% WETLANDS I SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) % Non-~vetland Palustrine Wetland Forested Needle Leaved Evergreen Forested Broad Leaved Deciduous Forested Needle Leaved Evergreen and Forested Broad Leaved Deciduous Scrub/Shrub Needle Leaved Evergeen Scrub/Shrub Broad Leaved Deciduous Emergent Persistent Potential Palustrine Wetland Inclusions Estuarine Wetland Intertidal Scrub/Shrub Broad Leaved Deciduo-us Intertidal Emergent Persistent (calamagrostis) V-26 1,256,050 54.16% 40,920 52Q 14,270 3,310 450,390 70,890 140,400 2,510 4,110 1. 76% .02% .62% .14% 19.42% 3.06% 6.05% .11% .18% WETLANDS I (Continued) CLASS TOTAL AREA (ACRES) Intertidal Emergent Persistent (scirpus, limbia, spargeniam) Intertidal Unconsolidated Shore Mud Flat Potential Estuarine Wetland Inclusions Riverine Upper Perennial Streambed Cobble/Gravel Lower Perennial Streambed/ Unconsolidated Bottom ·Lacustrine Limnetic Unconsolidated Bottom Cobble/Gravel V-27 4,760 8,110 232,000 70,350 20,660 % .21% .35% .00% 10.00% 3.03% .89% ~VETLANDS II SUSITNA RIVER BASIN TALKEETNA SUBBASIN CLASS TOTAL AREA (ACRES) Non-Wetland 1,256,050 Palustrine Wetland ·Forested Needle.Leaved Evergreen - Picea mariana (PF04) 40,920 Forested Needle Leaved Evergreen and Broad Leaved Deciduous - Picea mariana and Populus valsamifera (PF04 and PFOl) 14,790 Scrub/Shrub Needle Leaved Evergreen - Picea mariana (PSS4) and Scrub/Shrub Broad Leaved Deciduous (PSSl) 453,700 Emergent Persistent -Carex (PEMl) 70,890 Potential Palustrine Wetland Inclusions 140,400 V-28 • % 54.16% 1.76% .68% 19.56% 3.06% 6.05% WETLANDS II (Continued) CLASS TOTAL AREA (ACRES) Estuarine Wetland Intertidal Scrub/Shrub Broad Leaved Deciduous Myrica (E2551) Intertidal Emergent Persistent Elymus (E2EM1) Intertidal Emergent Persistent - Scirpus, Limbia, or Sparganium (E2EM1) Intertidal Mud Flat (E2FL3) Riverine Upper Perennial Streambed Cobble/Gravel (R35Bl) Lacustrine Littoraland Limnetic Unconsolidated Bottom Cobble/Gravel (Ll, LlUBl, and L2UB1) V-29 2,510 4,110 4,760 8,110 232,000 91,010 % .11% .18% .21% .35% 10.00% 3.92% CLASS Class I Highest Class II Class III Class IV Class V Class VI Class VII Class VIII Class IX Class X Lowest ROAD SUITABILITY SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) 209,110 458,210 327,510 319,550 129,440 581,610 152,000 34,270 87,150 20,400 V-30 % 9.02% 19.76% 14.12% 13.78% 5.58% 25.08% 6.55% 1.48% 3.76% .87% CLASS CO LOS SUSITNA RIVER BASIN TALKEETNA SUBBASIN TOTAL AREA (ACRES) Class I Most Optimal 25,240 Class II 29,280 Class III 36,570 Class IV 86,550 Class V 152,350 Class VI 248,450 Class VII 404,420 Class VIII 377,450 Class IX Least Optimal 958,940 V-31 % 1.09% 1.26% 1. 58% 3.73% 6.57% 10.71% 17.44% 16.27% 41.3.5% CLASS Excessively Drained ~~ell Drained SOIL DRAINAGE SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL A...ttEA (ACRES) 8,912.10 ~1oderately Well Drained Poorly Drained 195,720 Very Poorly Drained 312,300 Glacier 17,200 Hater 33,990 V-32 % % 0.00% 61.44% 0.00% 13.49% 21.53% 1.19% 2.34% CLASS Slight Moderate Severe Water SOIL LIMITATIONS FOR DWELLINGS SUSITNA RIVER BASIN BELUGA SUBBASIN . V-33 TOTAL AREA (ACRES) 169,240 139,460 1,107,730 33,990 % 11.67% 9.62% 76.37% 2.34% CLASS Non-Vegetated Closed Forests Open Forests Fresh Water Wetland Salt Water Wetland Shrub Tundra Grassland RANGE RESOURCES SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) 91,340 258,600 169,650 215,290 18,940 524,470 146,480 25,650 V-34 % 6.30% 17.83% 11.70% 14.84% 1.31% 36.16% 10.10% 1.77% CLASS 0-3% Slope 3-7% Slope 7-12% Slope 12-20% Slope 20-30% Slope 30-45% Slope > 45% Slope ' Water Glacier SLOPE SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) 450,610 229,950 145,520 193,600 124,250 148,070 108,760 33,990 15,190 V-35 % 31.07% 15.85% 10.03% 13.35% 8.60% 10.21% 7.50% 2.34% 1.05% CLASS FOREST RESOURCES SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) Closed White Spruce/Hemlock 14,400 Open White Spruce 5,210 Closed Black Spruce 35,010 Open Black Spruce 2,860 Closed Mixed Forest 203,060 Open Mixed Forest 155,810 Closed Cottonwood 6,130 Open Cottonwood 5 '770 Non-Forests 1,022,170 V-36 % .99% .36% 2.41% .• 20% 14.00% 10.74% .42% .40% 70.47% CLASS Class A Class B Class c Class D Class E Class F Waterbody IMPORTANT FAIU'1LAND SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) 42,380 70,940 17,020 27,440 146,970 1,109,130 36,540 V-37 % 2.92% 4.89% 1.17% 1.89% 10.13% 76.47% 2.52% GROUNDWATER AVAILABILITY MAP SUSITNA RIVER BASIN BELUGA SUBBASIN CLASS Yield Area 1 (Lowest) Yield Area 2 Yield Area 3 (Highest) V-38 TOTAL AREA (ACRES) 141,650 1,130,330 178,440 % 9.77% 77.93% 12.30% ECONOMIC AGRICULTURE/FORESTRY SUSITNA RIVER BASIN BELUGA SUBBASIN CLASS TOTAL AREA (ACRES) Class III Soil and Select Forest Type 107,020 Class II Soil and Select Forest Type 102,430 Select Fdrest Type 189,250 Class III Soils 57,430 Class II Soils 18,980 Other Lands 941,320 Water 33,990 V-39 % 7.38% 7.06% 13.05% 3.96% 1.31% 64.90% 2.34% CAPABILITY FOR HODERATE/HIGH DENSITY RESIDENTIAL DEVELOPMENT MAP SUSITNA RIVER BASIN CLASS High Moderate Low Incapable BELUGA SUBBASIN TOTAL AREA (ACRES) % 146,170 10.08% 153,760 10.60% 386,390 26.64% 764,100 52.68% V-40 CAPABILITY FOR LOW DENSITY REMOTE RESIDENTIAL DEVELOPMENT MAP SUSITNA RIVER BASIN CLASS High Moderate Low Incapable BELUGA SUBBASIN TOTAL AREA (ACRES) V-41 1,990 80,580 336,270 1,031,580 % .14% . 5.56% 23.18% 71.12% CLASS Water 0-3 Tons/Acre/Year 4-7 Tons/Acre/Year 8-15 Tons/Acre/Year. 16-25 Tons/Acre/Year 26-40 Tons/Acre/Year > 40 Tons/Acre/Year EROSION HAP SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) 33,990 557,750 193,400 135,790 192,360 102,780 234,350 V-42 % 2.34% 38.45% 13.33% 9.36% 13.26% 7.09% 16.16% CLASS Levell Level 2 Level 3 Level 4 MOOSE HABITAT SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) Mod/High WR, (S/S/F) Range 914,730 Mod/High (S/S/F) Range No WR 18,035 Low to No Habitat 321,350 lolater 33,990 Abbreviations: WR = Winter Range (S/S/F) = Spring/Summer/Fall V-43 % 63.07% 12.43% 22.16% 2.34% GENERAL HABITAT I SUSITNA RIVER BASIN BELUGA SUBBASIN CLASS TOTAL AREA (ACRES) High Diversity/Capability Mixed Forest -Open Conifer Forest -Open Tall Shrub Alder -Willow Deciduous Forest. -Open Mixed Forest -Closed Low Shrub -Willow Resin Birch Salt Water Wetland, Grassland, and Tidal Flats Hoderate Diversity/Capability Conifer Forest -Closed Low Shrub Salt Water Wetland Deciduous Forest ~ Closed Short Black Spruce -Open Sphagnum Bog Tall Shrub Alder V-44 155,810 5,210 59,420 5, 770 203,040 16,280 17,150 4,941 1,790 6,150 2,860 215,290 435,000 % 10.74% .36% 4.10% .40% 14.00% 1.12% 1.18% 3.41% .12% .42% .20% 14.84% 29.99% Grassland Tundra Special Consideration Tundra Low Diversity/Capability Low Diversity/Capability Water Lakes and Streams V-45 25,650 1.77% 160,250 11.05% 57,350 3.95% 33,990 2.34% GE~~RAL HABITAT II SUSITNA RIVER BASIN BELUGA SUBBASIN CLASS TOTAL AREA (ACRES) High Diversity/Capability 462,680 Moderate Diversity/Capability 736,150 Low Diversity/Capability 57,350 Tundra Special Consideration 160,250 Lakes and Streams 33,990 V-46 % 31.90% 50.75% 3.95% 11.05% 2.34% WETLANDS I SUSITNA RIVER BASIN BELUGA SUBBASIN CLASS TOTAL AREA (ACRES) % Non-Wetland Palustrine Wetland Forested Needle Leaved Evergreen Forested Broad Leaved Deciduous Forested Needle Leaved Evergreen and Forested Broad Leaved Deciduous Scrub/Shrub Needle Leaved Evergeen Scrub/Shrub Broad Leaved Deciduous Emergent Persistent Potential Palustrine Wetland Inclusions Estuarine Wetland Intertidal Scrub/Shrub Broad Leaved Deciduous Intertidal Emergent Persistent (calamagrostis) V-47 993,830 68.52% 20,480 2,820 6,710 1,950 187,820 107,670 65,670 10790 9,250 1.41% .19% .46% .13% 12.95% 7.42% 4.53% .12% .64% WETLANDS I (Continued) CLASS Intertidal Emergent Persistent (scirpus, limbia, spargeniam) Intertidal Unconsolidated Shore Nud Flat TOTAL AREA (ACRES) 7,900 10,5.40 Potential Estuarine Wetland Inclusions Riverine Upper Perennial Streambed Cobble/Gravel Lower Perennial Streambed/ Unconsolidated Bottom Lacustrine Limnetic Unconsolidated Bottom Cobble/Gravel V-48 10,630 23,360 % .54% • 73% .00% .00% .73% 1.61% CLASS Class I Highest Class II Class III Class IV Class v Class VI Class VII Class VIII Class IX Lowest ROAD SUITABILITY SUSITNA RIVER BASIN BELUGA SUBBASIN TOTAL AREA (ACRES) 10 125,620 141,930 146,810 258,990 176,010 172,620 219,280 209,150 V-49 % 0.00% 8.66% 9.79% 10.12% 17.86% 12.14% 11.90% 15.12% 14.42% Appendix Al Data Classification and Coding Talkeetna Subbasin Integrated Terrain Unit Map Surface Hydrology Map Points and Linear Features Hap Land Status Map MANUSCRIPT Ill INTEGRATED TERRAIN UNIT MAP DATA CLASSIFICATION AND CODING SLOPE Slope Gradient (Column 1) 1 = 0-3% 2 = 3-7% 3 7~12% 4 = 12-20% 5 = 20-30% 6 = 30-45% 7 Greater than 45% LANDFORM Physiographic Division (Column 2) 1 Mountain 2 Hill 3 = Slope 4 = Plateau 5 Valley 6 = Coastal Lowlands 7 Glacier 8 = \vaterbody Landform Type (Column 3, 4 and 5) GLACIAL llO = Moraine 111 = End Moraine ll2 = Lateral Moraine ll3 Medial Moraine ll4 = Horainal Ridge 115 = Ragen Horaine 116 Ground Horaine 120 Till 121 = Till, Undifferentiated 130 Drumlin 131 Drumlin, Drumloid 132 Rock Drumlin, Drumlinoid Al-l FLUVIOGLACIAL 210 Outwash 220 Abandoned Outwash Channel 230 = Remnant Subglacial Stream Valley 240 Kame Complex 250 = Esker 260 = Crevasse Filling 270 Side Glacial Drainage Channels 280 = Flute AEOLIAN 310 Dune 311 = Dune and Outwash Complex LITTORAL Longshore Bar 410 = 411 412 = Longshore Bar Within Abandoned Coastline (Not Surveyed Flood Zone) Longshore Bar Within Abandoned Coastline (Surveyed Flood Zone) 420 = Beach 430 = Barrier Spit Lf40 Delta !f41 Delta-Flood Plain Within Abandoned Coastline (Not Surveyed Flood Zone) 4Lf2 = Delta-Flood Plain Within Abandoned Coastline (Surveyed Flood Zone) 443 = Delta-Flood Plain (~at Surveyed Flood Zone) 444 Delta-Flood Plain (Surveyed Flood Zone) 44.5 Delta and Outwash Complex 450 Tidal Flat 451 = Tidal Flat Within Abandoned Coastline (Not Surveyed Flood Zone) 452 = Tidal Flat Within Abandoned Coastline (Surveyed Flood Zone) 460 Coastal Plain FLUVIAL 510 Active Channel 511 Active Channel (Not Surveyed Flood Zone) 512 = Active Channel (Surveyed Flood Zone) 520 = River Bar 521 River Bar (Not Surveyed Flood Zone) 522 River Bar (Surveyed Flood Zone) A1-2 Flood Plain 530 531 532 = 533 = 534 Active (Not Surveyed Flood Zone) Active (Surveyed Flood Zone) Abandoned (Not Surveyed Flood Zone) Abandoned (Surveyed Flood Zone) 550 = Alluvial Plain 560 = Alluvial Fan/Cone 570 = Lacustrine Deposits MASS WASTING 610 = Colluvium 620 = Talus 630 Landslide Deposits 640 Rock Glacier 650 Mine Tailings TECTONIC UPLIFT 710 Upland Valley 720 = Mountain Sideslope 730 Mountain Ridgetop WATER BODY 810 = Sea 820 = Lagoon 821 = Lagoon Within Abandoned Coastline (Not Surveyed Flood Zone) 822 Lagoon Within Abandoned Coastline (Surveyed Flood Zone) 830 = 831 832 833 = 834 835 Lake Lake Lake Within Abandoned Coastline (Not Surveyed Flood Zone) Lake Within Abandoned Coastline (Surveyed Flood Zone) Lake in Active Flood Plain (Not Surveyed Flood Zone) Lake in Active Flood Plain (Surveyed Flood Zone) 840 River 841 River (Not Surveyed Flood Zone) 842 = River (Surveyed Flood Zone) Al-3 ICE AND SNOW 910 = Glacier 920 = Permanent Snowfield GENERAL GEOLOGY Surficial Geology (Column 6) 1 No Surficial Deposits 2 = Surficial Deposits 3 Water Body 4 = Glacier Bedrock Geology (Columns 7 and 8) 01 = Tertiary, Undifferentiated (Tu) 02 = Tertiary Intrusive (Ti) 03 Tsadaka Formation (Tt) 04 Arkose Ridge FoLmation (Tar) 05 = Chickaloon Formation (Tc) 06 Tertiary/Cretaceous Plutonic (TKgd) 07 = Paleozoic/Jurassic/Cretaceous, Undifferentiated Sediments and Hetasediments (PKJu) · 08 = Mesozoic/Paleozoic Metamorphosed Schist (MP~) 09 ~vaterbody 10 Tyonek Formation, Sedimentary Rock, Primary Sandstone (Tts) 11 =Mesozoic Marine Sedimentary Rocks, Undivided (including Graywacks, shale, siltstone, argillite, and chert) (Kju) 12 = Metamorphosed Volcanic Rocks (Pzv) 13 Undifferentiated Volcanic Rocks (Tv) 14 = 15 = 16 = 17 18 = 99 = Intrusive Igneous Rock, Granite or Granodiorite (Ruth Pluton) (Tmr) Sterling Formation, Sedimentary Rock (Tps) Intrusive Igneous Rock, Granite or Granodiorite (Kahiltna Pluton) (Tmk) Undifferentiated Sedimentary Rocks (Tsu) Glacier Water Economic Geology (Columns 9 and 10) 00 No Mineral Deposits 01 = Surficial Deposits of Gravel, Gravel and Sand, or Sand 02 = Potential Deposits of Gold, Silver, Copper, Tungsten or Molybdenum 03 = Potential Deposits of Copper, Gold, Silver or Holybdenum 04 Potential Deposits of Coal Field 05 Potential Deposit of Uranium 06 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Coal Field and Uranium Al-4 07 = Potential Deposits of Coal Field and Uranium 08 Surficial Deposits of Gravel, Gravel and.Sand, or Sand Potential Deposit of Uranium 09 Potential Deposits of Uranium, Copper and Gold 10 = ?atential Deposits of Copper and Gold 11 Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Copper and Gold 12 Potential Deposits of Uranium, Copper, Gold, Silver and Molybdenum 13 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposit of Coal Field 14 = Potential Deposits of Coal Field, Gold, Silver, Copper and Molybdenum Recognized Mineral Areas 15 Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Gold, Silver, Copper and Molybdenum Recognized Mineral Areas 16 Potential Deposits of Gold, Silver, Copper and Molybdenum Recognized Mineral Areas 17 Potential Deposit of Gold 18 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Coal Field, Gold, Silver, Copper and Molybdenum Recognized Mineral Areas 99 = Water GEOLOGIC HAZARDS Geologic Hazards I (Columns 11 and 12) 00 Xo Geologic Hazards 01 = Primary Potential Flood Zone 02 = Secondary Potential Flood Zone 03 = Outburst Flooding Zone 04 = Catastrophic Wave Zone 05 = Landslide Zone 06 Undulating Terrain With Varying Particle Size 07 = Unstable Ground 08 = Avalanche Tracks 09 = Glacier 14 = ?rimary Potential Flood Zone and Catastrophic Wave Zone 24 Secondary Potential Flood Zone and Catastrophic Wave Zone 99 Water Geologic Hazards II (Column 13) 1 Liquification, Slumps, Fissures or Compaction 2 Known or High Potential for Landslides 3 Liquifaction, Slumps, Fissures or Compaction/Known or High Potential for Landslides A1-5 9 = No Geologic Hazards (includes water) SOILS Soils (Columns 14, 15 and 16) SUSITNA VALLEY SOIL SURVEY 115 Bernice sandy loam, steep (BeF) 116 = Caswell silt loam (Ca) 117 = Chena fine sandy loam (Ch) 118 = Chulitna silt loam, nearly level (ClA) 119 = Chulitna silt loam, undulating (ClB) 120 = Chulitna silt loam, rolling (ClC) 121 = Clunie peat (Cn) 122 = Coal Creek silt loam (Co) 123 = Delyndia silt loam, nearly level (DeA) 124 = Delyndia silt loam, undulating (DeB) 125 = Delyndia silt loam, rolling (DeC) 126 = Delyndia silt loam, hilly (DeD) 127 = Delyndia-Salamatof complex (Dm) 128 = D~nglishna sandy loam (Dn) 129 Dinglishna-Moose River complex (Dr) 130 = Flat Horn silt loam, nearly level (FhA) 131 Flat Horn silt loam, undulating (FhB) 132 Gravelly alluvial land (Ga) 133 = Gravel pits (Gv) 134 = Homestead silt loam, nearly level (lloA) lJ5 Homestead silt loam, undulating (HoB) 136 = Homestead silt loam, rolling (HoC) 137 Homestead silt loam, hilly (HoD) 138 = Homestead silt loam, moderately steep (HoE) 139 Jacobsen very stony silt loam (Ja) 140 Kalifonsky silt loam (Ka) 141 = Kashwitna silt loam, nearly level (KsA) 142 = Kashwitna silt loam, undulating (KsB) 143 = Kashwitna silt loam, rolling (KsC) 144 Kashwitna silt loam, hilly (KsD) 145 = Kashwitna silt loam, moderately steep (KsE) 146 = Kashwitna silt loam, steep (KsF) 147 = Killey-Hoose River complex (Kr) 148 = Lucile silt loam (Lu) 149 Mixed alluvial land (Me) 150 = Moose R~ver silt loam (Mr) 151 = Nancy silt loam, nearly level (NaA) 152 = Nancy silt loam, undulating (NaB) 153 = Nancy silt loam, rolling (NaC) 154 = Nancy silt loam, hilly (NaD) 155 OMIT 156 Nancy silt loam, moderately steep (NaE) Al-6 157 = Nancy silt loam, steep (NaF) 128 Nancy silt loam, sandy substratum, nearly level (NcA) 159 Nancy silt loam, sandy substratum, undulating (NcB) 160 = Nancy silt loam, sandy substratum, rolling (McC) 161 Nancy silt loam, sandy substratum, hilly (NeD) 162 = Nancy silt loam, sandy substratum, moderately steep (NeE) 163 Niklason fine sandy loam (Nk) 164 Rabideux silt loam, nearly level (RaA) 165 = Rabideux silt loam, undulating (RaB) 166 = Rabideux silt loam, rolling {RaC) 167 Rabideux silt loam, hilly (RaD) 168 = Rabideux silt loam, moderately steep (RaE) 169 Rabideux silt loam, steep (RaF) 170 = Rabideux silt loam, shallow, nearly level {RbA) 171 = Rabideux silt loam, shallow, undulating (RbB) 172 Rabideux silt loam, shallow, rolling {RbC) 173 Rabideux silt loam, shallow, hilly (RbD) 174 = Rabideux silt loam, shallow, moderately steep (RbE) 175 = Rabideux silt loam, sandy substratum, nearly level (RdA) 176 = Rabideux silt loam, sandy substratum, undulating {RdB) 177 = Rabideux silt loam, sandy substratum, rolling (RdC) 178 Rabideux silt loam, sandy substratum, hilly {RdD) 179 Rabideux silt loam, sandy substratum, moderately steep {RdE) 180 Salamatof peat (Sa) 181 Schrock silt loam, nearly level (ShA) 182 = Slikok mucky silt loam (Sm) 183 = Sisitna fine sandy loam (Ss) 184 = Susitna and Niklason fine sandy loams, overflow (Sw) 185 Terrace escarpments (Te) 186 = Tidal flats (Tf) 187 Tidal marsh (Tm) 188 = Wasilla silt loam (Wa) 189 = Whitsol silt loam, nearly level (WhA) 190 Whitsel silt loam, undulating {\VhB) 191 ~fhitsol silt loam, rolling {WhC) 192 Whitsel silt loam, hilly {WhO) 193 = ~fhitsol silt loam, moderately steep (WhE) 194 = Homestead silt loam, steep (HoF) 401 = Coal Creek Silt Loam, 0-2& slope (010) 402 Capps Sand, 0-2% slope {014) 403 Drill Creek Peak, 0-3% slope (017A) 404 Drill Creek Pea, 3-7% slope (017B) 405 = Chichantna Peat, 0-3% slope {018A) 406 Chichantna Peat, 3-7% slope ((018B) 407 Sa1amatof Peat, 0-2% slope (019) 408 Triumvirate Silt Loam, 0-2% sope (023) 409 ~oose River Silt Loam, 0-2% slope {024) 410 Mutnala Silt Loam, 0-2% slope (30A) 411 Mutnala Silt Loam, 2-7% slope (30B) A1-7 412 = Mutnala Silt Loam, 7-12% slope (30C) 413 = Mutnala Silt Loam, 12-20% slope (30D) 414 = Mutnala Silt Loam, 7-20% slope (30C-D) 415 = Mutnala Silt Loam, 20-30% slope (30E) 416 = Mutnala Silt Loam, 30-45% slope (30F) 417 = Mutnala Silt Loam, 2045% slope (30EF) 418 = Mutnala-Chichantna Complex, 2-7% slope (30-18CD) 419 = Mutnala-Slikok Complex, 2-7% slope (30-31B) 420 = Mutnala-Slikok Complex, 7-12% slope (30-31C) 421 = Mutnala-Spenard Commplex, 2-7% slope (30-90B) 422 = Slikok Hucky Silt Loam, 0-2% slope (31A) 423 = Slikok Mucky Silt Loa,m, 2-7% slope (31B) 424 = Starichkof Peat, 0-2% slope (33A) 425 = Starichkof Peat, 2-7% slope (33B) 426 Doroshin Peat, 0-2% slope (56A) 427 = Doroshin Peat, 2-7% slope (56B) 428 = Killey Silt Loam, 0-2% slope (63) 429 = Killey-Moose River Complex, 0-2% slope (63-24) 430 = Clunie Peat (64) 431 = Tidal Flats (65) 432 = Susitha Fine Sandy Loam, 0-2% slope (077) 433.= Wasilla Silt Loam, 0-2% slope (079) 434 = Chedatna Silt Loam, 0-2% slope (080) 435 = Lucile Silt Loam, 0-2% slope (085) 436 = Lucile Sandy Substratum, 0-2% slope (086A) 437 Spenard Silt Loam, 0-2% slope (90A) 438 = Spenard Silt Loam, 2-7% slope (90B) 439 Talkeetna Silt Loam, 7-12% slope (93C) 440 Talkeetna Silt Loam, 12-20% slope (93D) 441 = Talkeetna Silt Loam, 20-30% slope ((93E) 442 = Talkeetna Silt Loam, 30-45% slope (93F) 443 = Chuit Silt Loam, Hummocky Phase, 3-12% slope (95BC) 444 = Chuit Silt Loam, Hummocky Phase, 12-30% slope (95DE) 445 = Chuit Silt Loam, Hummocky Phase, 30%+ slope (95FG) 446 Chuit Silt Loam, Hummocky Phase, 20-45% slope (95EF) 447 = Rock Outcrop-Chuit Complex, 7-12% slope (96CD) 448 = Rock Outcrop-Chuit Complex, 20-45% slope (96EF) 449 = Rock Outcrop, 45%+ slope (96G) · 450 Fluvent (107) 451 = Rabideux Silt Loam, 0-2% slope (126A) 452 = Rabideux Silt Loam, 2-7% slope (126B) 453 = Rabideux Silt Loam, 7-12% slope (126C) 454 = Rabideux Silt Loam, 12-20% slope (126D) 455 Rabideux Silt Loam, 20-30% slope (126E 456 = Rabideux Silt Loam, 30-45% slope (126F) 457 = Judd Silt Loam, 0-2% slope (0130) 458 Tidal Marsh (188) 459 = Rabideux Sand Substratum, 0-2% slope (0526A) 460 = Rabideux Sandy Substratum, 2-7% slope (0526B) 461 = Rabideux Sandy Substratum, 7-12%. slope (0526C) Al-8 462 = Niklason Fine Sandy Loam, 0-2% slope (577) 463 Nancy Sandy Substratum (Kashihitna) (687) 464 = Susitna Niklason Complex, 0-2% slope (777) 465 = Lithic Cryorthod 7-20% ~omplex slopes (1001CE) 466 = Flat Horn Silt Loam, 2-7% slope (83B) 467 =Hewitt Peat, 0-2% slope (270) 468 Mutnala-Slikok Complex, 0-2% slope (30-31A) 469 = Schrock Silt Loam, 0-2% slope (125) 470 = Lithic Cryorthod, 7-12% slope (1001C) 471 = Nancy Silt Loam, 0-2% slope (87A) 472 = Nancy Silt Loam, 2-7% slope (87B) 473 = Nancy Silt Loam, 7-12% slope (87C) 474 = Talkeetna Silt Loam, 2-7% slope (93B) 475 Lucile Silt Loam, 2-7% slope (85B) 476 = Lucile Silt Loam, 7-12% slope (85C) 477 Starichkof Peat, 7-12% slope (33C) 478 = Mutnala-Spenard Complex, 7-12% slope (30-90C) 479 = Bernice Sandy Loam, 30-45% slope (13F) 480 Flat Horn Silt Loam, 0-2% slope (83A) 481 = Chuit Silt Loam, Hummocky Phase, greater than 45% slope (95G) 482 Seely (60B) 483 = Chuit Silt Loam, Hummocky Phase, 7-20% slope (95CD) 484 Seely (60C) 485 Seely (60D) 486 = Nutnala-Slikok Complex, 12-20% slope (30-31D) 487 Nancy Silt Loam, Sandy Substratum, 2-7% slope (687B) 488 Nancy Silt Loam, Sandy Substratum, 7-12% slope (687C) 489 = Susitna-Niklason Overflow, 0-2% slope (677) 490 Jacobsen Very Stony Silt Loam, 0-2% slope (123) 491 = Mutnala Silt Loam, 0-7% slope (30AB) 492 = Hewitt Peat, 0-2% slope (270) 493 Rabideux Silt Loam, Shallow, 0-2% slope (626) 494 }!utnala Silt Loam, nearly level (135A) 495 = Hutnala Silt Loam, (135) 496 = Whitsel Silt Loam, 2-7% slope (587B) 497 = Whitsel Silt Loam, 7-12% slope (587C) 498 = Mutnala-Slikok Complex, 7-12% complex slopes (30CD-31) 499 = Chuit Silt Loam, Hummocky Phase, 30-45% slope (95F) 500 = Mutnala Silt Loam, greater than 45% slope (30G) 501 Spenard Silt Loam, 7-12% slope (90C) 502 = Mutnala-Slikok Complex, 30-45% slope (30-31F) 503 = Killey-Hoose River Complex, 0-2% slope (24-63) 504 = Homestead Silt Loam, undulating (HOB) 505 Rough broken land (terrace escarpments) (113) 506 Talkeetna rock outcrop, greater than 45% slope (93G) 507 = Whitsel Silt Loam, 30-45% slope (587F) 508 = Whitsel Silt Loam, 20-30% slope (587E) 509 Rough Hountainous Land (9) 510 = Talkeetna Silt Loam, 0-2% slope (93A) 511 Bernice Sandy Loam, 45%+ slope (13G) Al-9 512 = Daneka Silt Loam, 2-7% slope (312B) 513 Daneka Silt Loam, 7-12% slope (312C) 514 Daneka Silt Loam, 12-20% slope (312D) 515 Daneka Silt Loam, 20-30% slope (312E) 516 Daneka Silt Loam, 30-45% slope (312F) 517 Daneka Silt Loam, greater than 45% slope (312G) 518 = Daneka Silt Loam, 0-2% slope (312A) 519 Jacobsen very stony silt loam, 7-12% slope (123C) 520 Daneka Silt Loam, 7-20% slope (312CD) S21 = Schrock Silt loam, 2-7% slope (125B) 522 = Grubstake Silt Loam, 20-30% slope (313E) 523 = Jacobsen Very Stony Silt Loam, 2-7% slope (123B) 524 = Grubstake Silt Loam, 7-12% slope (313C) 525 = Homestead Silt Loam, very shallow, 20-30% slope (572E) 526 = Homestead Silt Loam, very shallow, 0-2% slope (572A) 527 = Kliskon, 7-12i slope (38C) 528 = Kliskon, 2-7% slope (38B) 529 = Rock Outcrop-Chuit Complex, greater than 45% slope (96G) 530 = Talkeetna Silt Loam, 2-12% slope (93BC) 531 = Kliskon, 0-2% slope (38A) 532 = Rabideux Silt Loam, cool phase, 0-2% slope (121A) 533 = Rabideux Silt Loam, cool phase, 2-7% slope (121B) 534 = Rabideux Silt Loam, cool phase, 7-12% slope (121C) 535 = Slikok Mucky Silt Loam, 7-12% slope (31C) 536 = Chuit Silt Loam, Hummocky Phase, 12-20% slope (95D) 537 = Talkeetna Silt Loam, 7-20% slope (93CD) 538 = Talkeetna-Slikok Complex, 7-12% slope (93-31E) 539 = Chulitna-Slikok Complex, 7-12% slope (526-31C) 540 Chulitna-Slikok Complex, 12-20% slope (526-31D) 541 = \~atana Silt Loam, 20-30% slope (311E) 542 Mutnala-Chichantna Complex, 2-7% slope (30-lSB) 543 = (Glacial) Glacial NO SOIL SURVEY (ESRI Extrapolation) 600 Alluvial Land 601 = Susitna-Niklason Complex, 0-2% slope 602 = Salamatof peat, 0-2% slope 603 = Niklason Fine Sandy Loam, 0-2% slope 604 = Mutnala Silt Loam, 207% slope 605 = Mutnala-Spenard Complex, 2-7% slope 606 = Starichkof Peat, 0-2% slope 607 Mutnala Silt Loam, 12-2-% slope 608 = Slikok Mucky Silt Loam, 0-2% slope 609 Chultna Silt Loam, 2-7% slope 610 = Rabideux Silt Loam, 2-7% slope 611 = Rabideux Silt Loam, 2-7% slope 612 Rabideux Silt Loam, 7-12% slope 613 Rabideux Silt Loam, 12-20% slope A1-10 614 Rabideux Silt Loam, 20-30% slope 615 = Rabideux Silt Loam, 30-45% slope 616 Moose River Silt Loam, 0-2% slope 617 Doroshin Peat, 0-2% slope 618 = Spenard Silt Loam, 0-2% slope 619 Spenard Silt Loam, 2-7% slope 620 = Mutnala Silt Loam, 7-12% slope 621 = Mutnala Silt Loam, 20-30% slope 622 Lucile Silt Loam, 0-2% slope 623 = Nancy Silt Loam, 0-2% slope 624 Nancy Silt Loam, 30-45% slope 625 Nancy Silt Loam, 20-30% slope 626 = Nancy Silt Loam, 2-77. slope 627 = Talkeetna Silt Loam, 2-7% slope 628 = Talkeetna Silt Loam, 7-12% slope 629 = Talkeetna Silt Loam, 12-207. slope 630 = Talkeetna Silt Loam, 20-30% slope 631 = Talkeetna Silt loam, 30-45% slope 632 = Deneka Silt Loam, 7-127. slope 633 = Deneka Silt Loam, 12-20% slope 634 = Deneka Silt Loam, 20-30% slope 635 = Deneka Silt Loam, greater than 45% slope 636 = Schrock Silt Loam, 0-2% slope 637 Kashwitna Silt Loam, 2-7% slope 638 Jacobsen Very Stony Silt Loam, 0-2% slope 639 = Kashwitna Silt Loam, 0-2% slope 640 = Niklason Fine Sandy Loam, 0-2% slope 641 = Bernice Sandy Loam, 30-45 % slope 642 = Jacobsen Very Stony Silt Loam, 2-7% slope 643 = Mixed Alluvial Land 644 = Killey-Moose River Complex, 0-2% slope 645 = Moose River Silt Loam, 0-2% slope 646 Mutnala Silt Loam, 12-20% slope 647 = Mutnala Silt Loam, 30-457. slope 648 = Kashwitna Silt Loam, 7-12% slope 649 = Nancy Silt Loam, 12-20% slope 650 = Killey-Moose River Complex, 0-2% slope 999 Water a~BITATS No Habitat Data for Upper Talkeetna Subbasin Habitat I (Columns 17 and 18) Source: Paul Arneson, Dan Timm 00 = No Habitat or No Data 01 = A6, B6, C(1,3,4) Al-11 02 = A, C 03 = A(1,6), B(1,6), C(1,2,3,4,6) 04 = A(1,6), B(l,6), C(1,2,3,4,6) 05 A 06 A + Old Fire Good Moose Winter Habitat 07 Old Fire Good Moose Winter Habitat 08 = A(1·,6), B(1,6), C(1,2,3,4,6) Old Fire Good Moose Winter Habitat 09 = A(1,6), B(1,6), C3 10 = A1, C(l,2,3,6,7) 11 = C Moose Concentration 12 = C Moose Concentration A1, C(1,2,3,7) 13 = A1, C(1,2,3,7) 14 = C3 15 = A(1,6), C(1,4,6) 16 = H(6,8), C4 17 = A(1,6), C(3,4,6) N(6,8) 18 = A6, C3 19 = Cl,3 20 = A(l,6), C(3,4) 21 A6, B6, C3 22 = A1, C1 23 = A6, C(2,6,7) Habitat II (Column 19) Source: Jack Didrickson, Dave Harkness 0 = No Habitat or No Data 1 = H8 2 = H(6,7,8,9) 3 H(6,7,8,9) 4 = H(6,7,8,9) Habitat III (Column 20) Source: Alaska Wildlife and Habitat, Vol. 2 0 = No Habitat or No Data 1 = 2 = 3 = 4 5 6 7 8 Ki, Ti, Ni Oi, Ni 0, Siii, Ni Siii, 0 Ti, Ni Ki Oii Ki, 0, Siii Habitat IV (Columns 21 and 22) Source: Alaska Wildlife and Habitat, Vol. 1, 2 00 No Habitat or No Data Ol A1 Al-12 02 D 03 = D, Gi 04 Gii, Gi, D 05 Gii, D 06 Gi, D 07 = Gii, D 08 = BS 09 B6 10 A6, B6 11 = A6 12 Al, B6 13 = Al, D Habitat V (Column 23) Source: Seabird Catalog Information, USF~vS 0 = No Habitat or No Data 1 = V(i) (6,8) HABITAT CODE DESCRIPTION Wildlife Resources A = Black Bear B Grizzly Bear C = Moose D Caribou Gi = Dall Sheep Gii = Mountain Goat H = Hater Fowl Ki = Marten Ni = Beaver Oi = Hoary Marmot Siii = White Tailed Ptarmigan Vi = Gull spp (Laurus spp) LAND USE Habitat Usage 1 = Spring/Summer Range 2 = Fall 3 = Winter 4 6 7 8 9 Calving = Feeding = Migration = Nesting/Molting = Staging Land Use (Columns 24, 25, 26 and 27) AGRICu"LTURE 0110 0120 0130 = Pasture Grain, Grass Vegetables 0140 0150 = Dairy Other Al-13 RESIDENTIAL Dispersed Residential Low Density Medium Density High Density 0210 = 0220 0230 0240 0250 Commercial (Hotel, Motel or Lodge) COHMERCIAL 0310 = Eating and Drinking Establishment 0320 = Food 0330 = General Merchandise 0340 = Apparel and Accessories 0350 = Furniture or Home Furnishings and Equipment 0360 = Building Materials, Hardware or Farm Equipment 0370 = Auto Dealers or Gasoline Service 0380 = Other K4.NUF ACTURING 0410 = 0420 0430 = 0440 = Food Llliilber or Wood Products Gravel or Cement Products Other SERVICES Miscellaneous Business Services Personal Professional Stations 0510 0520 0530 0540 0550 = 0560 = Finance, Construction or Real Estate Repair Other PUBLIC/QUASI-PUBLIC SERVICES 0610 = Military 0620 = Governmental Institution 0630 = Educational Institution 0640 = Health Institution 0650 = Church or Community Center 0660 = Cemetary 0670 Solid Waste Disposal Site 0680 Other A1-l4 CO}DfiUNICATION FACILITY 0700 = Communication Facility, Undifferentiated TRANSPORTATION FACILITY 0810 = Airport 0811 = Public Access 0812 = Private Access 0820 = Marine, Port or Dock Facility UTILITY 0900 = Utilities, Undifferentiated RESOURCE EXTRACTION 1020 = Sand/Gravel Quarry and Borrow Pit 1030 = Surface Mine 1040 Gas Field Well 1041 = Inactive 1042 = Active 1050 = Oil Well Field 1051 = Inactive 1052 = Active 1060 = Timber MIXED URBAN BUILT UP 1100 = Mixed Urban Built Up UNDER CONSTRUCTION 1200 = Under Construction VACANT DISTURBED 1300 = Vacant Disturbed OUTDOOR RECREATION (Source: DNR Land Use Maps, Imagery) 1410 = Marine Boat Launching Sites 1420 = Public Park, Campground, Refuge 1430 = Private Resort, Park, Group Camp RECREATION (Source: DNR Recreation Map) 1510 = Bird Watching 1520 = Bird Watching/Mountaineering 1530 Mountaineering A1-15 1540 = Lake Boating/Lake Canoeing 1550 = Lake Boating/Lake Canoeing/Lake Fishing 1551 = Lake Boating/Lake Canoeing and Intensive Fishing 1552 = Lake Boating/Lake Canoeing and Moderate Fishing 1553 = Lake Boating/Lake Canoeing and Light Fishing 1554 Lake Boating/Lake Canoeing and Very Light Fishing 1560 Lake Fishing 1561 = Intensive Fishing 1562 = Hoderate Fishing 1563 Light Fishing 1564 = Very Light Fishing NATURAL LANDS 1600 =Natural Lands, Undifferentiated (Including Water Bodies) VEGETATION Primary Vegetation (Columns 28 and 29) Secondary Vegetation (Columns 30 and 31) Tertiary Vegetation (Columns 32 and 33) Quaternary Vegetation (Columns 34 and 35) FOREST AND WOODLAND Closed Forest 21 22 24 25 26 27 28 29 = = = = = = Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Young Stands Deciduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Young Stands Cottonwood, Hedium-Aged Stands Cottonwood, Old Stands Open Forest-Woodland 31 32 33 34 35 36 = = = = = Coniferous Forest, White Spruce, Short Stands · Deciduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Hedium-Aged Stands Cottonwood, Old Stands Closed Forest (Black Spruce Mountain Hemlock) 41 Black Spruce, Short Stands 42 Black Spruce, Tall Stands Al-16 45 Mountain Hemlock, Short Stands 46 Mountain Hemlock, Tall Stands Open Forest-Woodland (Black Spruce) 43 = Black Spruce, Short Stands NON FORESTED Salt Water Wetlands 50 51 = 52 Salt Grassland Low Shrub Tidal marsh Tall Shrubs 60 = Alder 61 Alder-Willow (streamside veg.) Low Shrub 62 = Willow Resin Birch Grassland 63 = Upland Grass Tundra 64 = Sedge-Grass 65 = Herbaceous 66 Shrub 67 = }1at and Cushion Freshwater Wetlands 68 Sphagnum Bog 69 Sphagnum-Shrub Bog Cultural Features 70 = Cultural Influences Barren 80 = Mud Flats 81 = Rock A1-17 Permanent Snow and Ice 82 Sno~vfield 83 = Glacier Water 91 = Lakes greater than 50 ac. (census water) 92 Lakes at least 10 ac., but less than 40 ac. 96 Streams and Rivers at least 165 feet wide, but less than 500 feet wide 97 = Rivers greater than 1/8 mile (census water) A1-18 MANUSCRIPT /12 SURFACE HYDROLOGY }~ DATA CLASSIFICATION AND CODING STREA..'1 NETWORK Order Column 1 1 - 8 Periodicity (Column 2) 1 = Intermittent 2 = Perennial Origin (Column 3) 1 Non Glacial 2 = Glacial Discharge Profile (Column 4) 1 = Lowland 2 = Hountain Situation (Column 5) 1 = Not Within Waterbody 2 Within Waterbody Condition (Column 6) 1 Non Braided 2 = Braided Salmon Type (Columns 7-11) No Data for Lower Talkeetna Subbasin King Salmon (Column 7) Sockeye Salmon (Column 8) Coho Salmon (Column 9) Pink Salmon (Column 10) Chum Salmon (Column 11) 0 or Blank = No Data 1 Salmon Not Present 2 3 4 Salmon Present, But Not Spawning Salmon Present, Discontinuous Spawning Salmon Present, Known Spawning Area A1-19 Non-Salmon Freshwater Fish Type (Column 13-16) No Data for Lower Talkeetna Subbasin Dolly Varden (Column 13) Arctic Char (Column 14) Rainbow Trout (Column 15) Whitefish (Column 16) . - 0 or Blank = No Data 1 = Not Present 2 = Present WATERSHED Topologic Number (Columns 1-7)* 8th Order or Higher (Column 7th Order (Column 2) 6th Order (Column 3) 5th Order (Column 4) 4th Order (Column 5) 3rd Order (Column 6 and 7) 1) I. 8th order of higher watershed basins A. 1000000 = All basins draining into the 8th order Susitna River receive a 1 in column 1 (1) B. 2000000 = All basins draining into the Cook Inlet (121) C. 3000000 = Special watershed draining both directions; into the Susitna and the Cook Inlet. II. 7th order basins comprising Susitna River 8th A. 1100000 = Susitna River 7th (13) B. 1ZOOOOO = Yentna River 7th (38) III. 6th order basins A. 6th order basins comprising Susitna River 7th 1. 1110000 = Kroto Creek 6th (108) 2. 1120000 = Susitna River 6th (111) *GRID codes in parenthesis. A1-20 B. 6th order basins comprising Yentna ·River 7th 1. 1210000 Yentna 6th 2. 1220000 Skwentna 6th IV. 5th order basins A. 5th order basins comprising Kroto Creek 6th 1. 1111000 Kroto Creek 5th (21) 2. 111ZOOO = Moose Creek 5th (30) B.' 5th order basins comprising Susitna River 6th 1. 2. 3. 1121000 1122000 ni3ooo Chulitna Creek 5th (54) Susitna River 5th (60) = Talkeetna River 5th (62) c. 5th order basins draining directly into Yentna 7th 1. 2. 1201000 1202'000 Kahiltna River 5th (78) = Lake Creek 5th (97) D. 5th order basin draining directly into Susitna 8th 1. 1001000 = Alexander Creek 5th (3) E. 5th Order Basins Within Skwentna River 6th 1. 1221000 = Talachulitna River 5th (116) v. 4th order basins A. 4th order basins comprising Kroto Creek 5th 1. 1111100 = Kroto Creek 4th (23) 2. 1111200 = Unnamed 4th (27) B. 4th order basins comprising Moose Creek 5th L 2. 1112100 1112200 = Hoose Creek 4th (31) Nine Hile Creek 4th (35) C. 4th order basins within Susitna River 5th 1. 1121!00 = Tokositna River 4th (56) D. 4th order basins within Talkeetna 5th 1. 1123100 = Chunilna Creek 4th (65) A1-21 2. 1123200 = Talkeetna River 4th (68) 3. 1123300 = Sheep River 4th (70) E. 4th order basins comprising Kahiltna 5th 1. 1201100 = Unnamed 4th (81) 2. 1201200 =Kahiltna 4th (8'~) 3. 1201300 =Peters Creek 4th (93) F. 4th order basins draining directly into Susitna 6th 1. 1120100 = Kashwitna River 4th (44) 2. 1120200 Hontana Creek 4th (46) 3. 1120300 = Unnamed 4th (51) G. 4th order basins draining directly into Yentna 7th 1. 1200!00 = Fish Lake Creek (75) H. 4th order basins within Lake Creek 5th 1. 1202100 = Camp Creek 4th (102) 2. 1202200 = Lake Creek 4th (105) I. 4th order streams draining directly into Skwentna 6th 1. 1220!00 = Eight Mile Creek (113) J. 4th order streams comprising Alexander Creek 5th 1. 1001100 =Wolverine/Lower Sucker Creeks (5) 2. 1001200 Alexander Creek (8) VI. Third order basins A. 3rd order basins comprising Kroto Creek 4th 1. 1111101 = Unnamed 3rd order (24) 2. 1111102 = Kroto Creek 3rd (25) 3. 1111103 = Seventeen Hi1e. Creek 3rd ( 26) B. 3rd order draining directly into Kroto Creek 5th 1. 11110Ql = Unnamed 3rd (22) C. 3rd order draining direc-1y into Kroto Creek 5th 1. 1111201-Unnamed 3rd (28) 2. 1111202 = Unnamed 3rd (29) D. 3rd order basins conprising Moose Creek 4th 1. 1112101 = Unnamed 3rd (32) Al-22 2. 1112102 = \vest Fork Moose Creek 3rd (33) 3. 1112108 =Moose Creek 3rd (34) E. 3rd order basins comprising Nine tlile Creek 4th 1. 1112201 = Unnamed 3rd (36). 2. 1112202 = Nine Mile Creek 3rd (37) F. 3rd order basins comprising unnamed 4th 1. 1201101 = Unnamed 3rd (82) 2. 1201102 = Unnamed 3rd (83) G. 3rd order basins comprising Kahiltna 4th 1. 12012Ql = Unnamed 3rd (85) 2. 1201202 = Bear Creek (86) 3. 120120:3 = Unnamed 3rd (87) 4. 1201204 = Hungry Man Creek (88) 5. 1201205 = Cache Creek 3rd (89) 6. 1201206 = Treasure Creek 3rd (90) 7. 1201207 =Dutch Creek 3rd (91) 8. 1201208 = Granite Creek 3rd (92) H. 3rd order basin in Peters Creek 4th 1. 1201301 = Hartin Creek 3rd (94) 2. 1201302 =Kenny Creek 3rd (95) 3. 1201203 = Peters Creek 3rd (96) I. 3rd order basins within Camp Creek 4th 1. 1202101 = Mills Creek 3rd (103) 2. 1202102 =Camp Creek 3rd (104) J. 3rd order basins within Lake Creek 4th 1. 1202201 = Sunflower Creek 3rd (106) 2. 1202202 =Lake Creek 3rd (107) K. 3rd order basins craining directly into Kahiltna 5th 1. 1201001 = Indian Creek 3rd (79) 2. 1201002 = Unnamed 3rd (80) L. 3rd order basins comprising unnamed 4th 1. 1120301 = Rabideux Creek (52) 2. 1120302 = Queer Creek (53) Al-23 M. 3rd order basins draining directly into Susitna River 6th 1. 1120001 = Caswell Creek (39) 2. 1120002 = Sheep Creek (40) 3. 1120003 = Sunshine Question Creek (41) 4. 1120004 = Birch Creek (42) 5. 1120005 = Trapper Creek (43) N. 3rd order draining into Talkeetna 5th 1. 1123001 = Wiggle Creek (63) 2. 1123002 = Unnamed 3rd (64) 0. 3rd order basins comprising Eight Mile Creek 4th 1. 1220101 = Unnamed 3rd (114) 2. 1220102 =Unnamed 3rd (115) P. 3rd orders draining directly into Ynetna River 7th 1. 1200001 =Unnamed 3rd (72) 2. 1200002 =Moose Creek 3rd (73) 3. 1200003 = Indian Creek 3rd (74) Q. 3rd order basins comprising Alexander Creek4th 1. 1001201 = Bear Creek (9) 2. 1001202 = Clear Creek (10) 3. 1001203 = Deep Creek (11) 4. 1001204 = Unnamed (12) R. 3rd order basins within Wolverine/Lower Sucker 1. 10011Ql = Unnamed 3rd (6) 2. 1001102 = Wolverine Creek 3rd (7) s. 3rd order basins draining directly into Alexander Creek 5th 1. 1001001 = Trail Creek (4) T. 3rd order basins draining directly into Susitna 7th 1. 1100001 = Fish Creek (14) 2. 1100002 = Unnamed 3rd (15) u. 3rd order basins draining directly into Susitna 8th 1. 1000001 =Unnamed 3rd (2) Al-24 V. 3rd order basins draining directly into Cook Inlet 1. 2000001 = Theodore River (122) 2. 2000002 = Lewis River (123) w. 3rd order basin that drains into Talachulitina 4th (out of study area), the Skwentna 6th 1. 1221201 = Talachulitna 3rd (120) X. 3rd order basins draining directly into Kroto Creek 6th 1. 1110001 = Unnamed 3rd (17) 2. 1110002 = Unnamed 3rd (18) 3. 1110003 =Unnamed 3rd (19) 4. 1110004 = Unnamed 3rd (20) Y. 3rd order basins draining directly into Lake Creek 5th 1. 1202001 = Yenlo Creek 3rd (98) 2. 1202002 = Unnamed 3rd (99) 3. 1202003 = Unnamed 3rd (100) 4. 1202004 = Home Creek 3rd (101) z. 3rd order basins draining directly into Yentna 6th 1. 1210001 = Hewitt Creek 3rd (109) 2. 1210002 = Donkey Creek 3rd (110) ~~. 3rd order basins comprising Fish Lake 4th 1. 1200101 = Unnamed 3~d (76) 2. 1200102 = Unnamed 3rd (77) BB. 3rd order basins comprising Montana Creek 4th 1. 1120202 = Unnamed 3rd (47) 2. 1120203 = North Fork 3rd (48) 3. 1120204 =Middle Fork 3rd (49) 4. 1120205 = South Fork 3rd (50) CC. 3rd order basins within Kashwitna River 4th 1. 1120101 = North Fork Kashwitna River 3rd (45) DD. 3rd order basins within Tokositna River 4th 1. 1121101 = Tokositna River 3rd (57) 2. 1121102 = Bunco Creek 3rd (58) 3. 1121103 = Unnamed 3rd (59) Al-25 EE. 3rd order basins draining directly into Chulitna 5th 1. 1121001 =Unnamed 3rd (55) FF. 3rd order basins draining directly into Susitna River 5th 1. 1122001 = Whiskers Creek 3rd (61) GG. 3rd order basins within Talkeetna River 4th 1. 1123201 = Disappointment Creek 3rd (69) HH. 3rd order basins within Chunilna River 4th 1. 1123101 = Unnamed 3rd (66) 2. 1123102 = Unnamed 3rd (67) II. 3rd order basins draining directly into Talachulitna 5th 1. 1221002 = Unnamed 3rd (117) 2. 1221003 = Thursday Creek 3rd ( 118) 3. 1221004 = Unnamed 3rd (119) JJ. 3rd order baslns draining directly into Skwentna.River 6th 1. 12200~ = Shell Creek 3rd (112) KK. 3rd order special watershed draining both directions into the Susitna River and the Cook Inlet. 1. 3000001 = Ivan River 3rd (124) Al-26 MANUSCRIPT 113 POINTS AND LINEAR FEATURES MAP DATA CLASSFICATION &~ CODING NATUR-.\L LINES No data (Columns 1 and 2) 00 = No data Escarpments, Column 3 (Lines) 1 = Not an Escarpment 2 = Escarpment Fault Lines, Column 4 (Lines) 1 Not a Fault Line 2 = Possible Fault (requires field verification) 3 = Suspected or Inferred Fault 4 Known Fault CL~TUR_~ LINEAR FEATURES* No Data (Columns 1 and 2) 00 = No data Roads/Trails/Infrastructure Network (Column 3 and 4) Roads 11 = Non Paved Road 12 Paved Road 13 = Non Paved Road and Existing Utility Corridor 14 = Paved Road and Existing Utility Corridor 15 Non Paved Road and Proposed Utility Corridor 16 = Paved Road and Proposed Utility Corridor 17 = Proposed Road-Point McKenzie Highway Trails 21 = Existing Trail (1) Seismic Survey Lines 31 = Existing Seismic Survey Line (1) *GRID codes in parenthesis Al-27 Railroads 41 = Existing Railroad (1) Utility Corridors 51 = Existing Utility Corridor (2) 52 = Proposed Utility Corridor (1) No Data (Columns 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14) 000000000000 = No Data CULTURAL POINTS Extractive Sites (Columns 1-4) 1020 = Sand/Gravel Quarry and Borrow Pit 1030 = Subsurface Mine Entrance 1040 = Gas \'Tell 1041 = Inactive 1042 = Active 1050 = Oil Well 1051 = Inactive 1052 = Active 1060 = Abandoned Gas or Oil ~lell Al-28 MANUSCRIPT /t4 LAND STATUS MAP DATA CLASSIFICATION AND CODING TOWNSHIP Township, Columns 1, 2, 3, 4, 5, 6 and 7 Township Number of Township, Column 1 and 2 (i.e., 07 Township 7) North/South Designation, Column 3 1 = North 2 = South Name of Baseline, Column 4 0 = No Data 1 Unnamed Baseline Range Number of Range, Column 5 and 6 (i.e., 12-Range 12) East/\-lest Designation, Column 7 1 = East 2 West Name of Meridian, Column 8 0 No Data 1 = Seward Meridian OWNERSHIP No ownership data for Upper Talkeetna Subbasin Ownership, Column 9 and 10 00 = No Data Federal 10 = Federal A1-29 State 20 = State 21 State Patented Land 22 = State Tentatively Approved 23 = State University 24 = Other State Land Campground and Foreclosure 25 State Selected Land Borough Land 31 = Borough Patented Land 32 = Borough Tentatively Approved Municipal 40 = Municipal Private 50 = Private AGENCY INTEREST No agency interest data for Upper Talkeetna Subbasin Agency Interest, Column 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28 and 29 Fish and Game, Column 11 0 = No Data 1 = Not Fish and Game 2 Fish and Game Joint Fish and Game and Parks, Column 12 0 = No Data 1 = Not Joint Fish and Game and Parks 2 = Joint Fish and Game and Parks Parks, Columm 13 0 No Data 1 Not Parks 2 = Parks Timber, Column 14 0 = No Data . Al-30 1 = No Timber 2 = Timber Hlghway Corridor, Column 15 0 No Data 1 = No Highway Corridor 2 Highway Corridor Agriculture, Column 16 0 = No Data 1 = No Agriculture 2 = Agriculture Naterials Site, Column 17 0 = No Data 1 Not Materials Site 2 Materials Site Misc. Watershed, Column 18 0 No Data 1 No Misc. Watershed 2 Misc. Watershed Hineral Zone, Column 19 0 = No Data 1 = No Mineral Zone 2 Hineral Zone FSLUPC Ecological Reserve, Column 20 0 = No Data 1 No FSLUPC Ecological Reserve 2 FSLUPC Ecological Reserve New Capital Site, Column 21 0 No Data 1 = Not New Capital Site 2 New Capital Site New Capital Site Buffer, Column 22 0 No Data 1 Not New Capital Site Buffer 2 New Capital Site Buffer Al-31 Miscellaneous, Column 23 0 No Data 1 = Not Miscellaneous 2 Miscellaneous Intensive Recreation Areas, Column 24 0 No Data 1 Not Intensive Recreation Areas 2 Recreation Areas Bora Natural Buffer, Column 25 0 = No Data 1 = Not Bora Natural Buffer 2 = Bora Natural Buffer Bora \>Tayside, Column 26 0 = No Data 1 = Not Boro Wayside 2 = Boro Wayside Excl., Column 27 0 No Data 1 Not Exc1. 2 Exc·l. Al-32 Appendix A2 Data Classification and Coding Beluga Subbasin Integrated Terrain Unit Map Surface Hydrology Map Points and Linear Features Map Land Status Map MAl.'WSCRIPT Ill INTEGRATED TERRAIN UNIT MAP DATA CLASSIFICATION AND CODING SLOPE Slope Gradient (Column 1) 1 = 0-3% 2 3-7% 3 7-12% 4 = 12-20% 5 = 20-30% 6 = 30-45% 7 Greater than 45% LANDFOR.."'i Physiographic Division (Column 2) 1 Mountain 2 = Hili 3 = Slope 4 Plateau 5 = Valley 6 Coastal Lowlands 7 = Glacier 8 = Waterbody Landform Type (Column 3, 4 and 5) GLACIAL 110 = 111 = 112 = 113 = 114 115 116 120 = 121 130 = 131 132 Horaine End Moraine Lateral Moraine Hedial Moraine Horainal Ridge Ragen Moraine Ground Moraine Till Till, Undifferentiated Drumlin Drumlin, Drumloid Rock Drumlin, Drumlinoid A2-1 FLUVIOGLACIAL 210 = Outwash 220 = Abandoned Outwash Channel 230 = Remnant Subglacial Stream Valley 240 Kame Complex 250 Esker 260 Crevasse Filling 270 = Side Glac'ial Drainage Channels 280 = Flute AEOLIAN 310 = Dune 311 = Dune and Outwash Complex LITTORAL 410 = Longshore Bar 411 = Longshore Bar Within Abandoned Coastline (Not Surveyed Flood Zone) 412 = Longshore Bar Within Abandoned Coastline (Surveyed Flood Zone) 420 Beach 430 Barrier Spit 440 = Delta 441 = Del ta-Fl.ood Plain Within 'Abandoned Coastline (Not Surveyed Flood Zone) 442 = Delta:..Flood Plain ~Hthin Abandoned Coastline (Surveyed Flood Zone) 443 = Del ta-Fl.ood Plain (Not Surveyed Flood Zone) 444 Delta-Flood Plain (Surveyed Flood Zone) 445 = Delta and Outwash Complex 450 Tidal Flat 451 Tidal Flat Hithin Abandoned Coastline (Not Surveyed Flood Zone) 452 = Tidal Flat 'Within Abandoned Coastline (Surveyed Flood Zone) 460 Coastal Plain FLUVIAL 510 = Active Channel 511 Active Channel (Not Surveyed Flood Zone) 512 = Active Channel (Surveyed Flood Zone) 520 = River Bar 521 River Bar (Not Surveyed Flood Zone) 522 River Bar (Surveyed Flood Zone) 530 Flood Plain A2-2 531 = Active (Not Surveyed Flood Zone) 532 = Active (Surveyed Flood Zone) 533 = Abandoned (Not Surveyed Flood Zone) 534 = Abandoned (Surveyed Flood Zone) 550 = Alluvial Plain 560 = Alluvial Fan/Cone 570 = Lacustrine Deposits MASS WASTING 610 = Colluvium 620 = Talus 630 = Landslide Deposits 640 = Rock Glacier 650 = Mine Tailings TECTONIC UPLIFT 710 = Upland Valley 720 = Mountain Sideslope 730 = Mountain Ridgetop WATER BODY 810 = Sea 820 Lagoon 821 = Lagoon Within Abandoned Coastline (Not Surveyed Flood Zone) 822 = Lagoon \Vithin Abandoned Coastline (Surveyed Flood Zone) 830 Lake 831 Lake 832 = Lake Within Abandoned Coastline (Not Surveyed Flood Zone) 833 = Lake Within Abandoned Coastline (Surveyed Flood Zone) 834 = Lake in Active Flood Plain (Not Surveyed Flood Zone) 835 = Lake in Active Flood Plain (Surveyed Flood Zone) 840 River 841 =River (Not-Surveyed Flood Zone) 842 = River (Surveyed Flood Zone) "A2-3 ICE ~!u'ffi SNOW 910 = Glacier 920 = Permanent Snowfield GENERAL GEOLOGY Surficial Geology (Column 6) 1 = No Surficial Deposits 2 = Surficial Deposits 3 = Water Body 4 = Glacier Bedrock Geology (Columns 7 and 8) 01 = 02 = 03 = 04 = 05 = 06 = 07 = 08 = 09 = 10 = 11 = Tertiary, Undifferentiated (Tu, Qag) Tertiary Intrusive (Ti) Tsadaka Formation (Tt) Arkose Ridge Formation (Tar) Chickaloon Formation (Tc) Tertiary/Cretaceous Plutonic (TKgd) Paleozoic/Jurassic/Cretaceous, Undifferentiated Sediments and Metasediments (PKJu) . }fesozoic/Paleozoic Metamorphosed Schist (MPs) Waterbody Tyonek Formation, Sedimentary Rock, Primary Sandstone (Tts) Mesozoic Marine Sedimentary Rocks, Undivided (including Graywacks, shale, siltstone, argillite, and chert) (Kju) 12 Metamorphosed Volcanic Rocks (Pzv) 13 Undifferentiated Volcanic Rocks (Tv) 14 =Intrusive Igneous'Rock, Granite or Granodiorite (Ruth Pluton) (Tmr) 15 = Sterling Formation, Sedimentary Rock (Tps) 16 = Intrusive Igneous Rock, Granite or Granodiorite (Kahiltna Pluton) (Tmk) 17 = Undifferentiated Sedimentary Rocks (Tsu) 18 = Glacier 19 =Kenai Formation, Sandstone, Conglomerate, Siltstone, Claystone (tku, Tkm, Tkl) 20 = Landslide Deposits (Qls) 99 ~~ater Economic Geology (Columns 9 and 10) 00 = No Mineral Deposits or No Data GEOLOGIC HAZARDS Geologic Hazards I (Columns 11 and 12) A2-4 00 = No Geologic Hazards 01 = Primary Potential Flood Zone b2 Secondary Potential Flood Zone 03 Outburst Flooding Zone 04 Catastrophic Wave Zone 05 = Landslide Zone 06 = Undulating Terrain With Varying Particle Size 07 = Unstable Ground 08 = Avalanche Tracks 09 = Glacier 14 Primary Potential Flood Zone and Catastrophic Wave Zone 24 = Secondary Potential Flood Zone and Catastrophic Wave Zone 99 = Water Geologic Hazards II (Column 13) 0 = No Data SOILS Soils (Columns 14, 15 and 16) SUSITNA VAL~EY SOIL SURVEY 115 = Bernice sandy loam, steep (BeF) 116 = Caswell silt loam (Ca) 117 = Chena fine sandy loam (Ch) 118 Chulitna silt loam, nearly level (C1A) 119 = Chulitna silt loam, undulating (ClB) 120 = Chulitna silt loam, rolling (ClC) 121 = Clunie peat (Cn) 122 = Coal Creek silt loam (Co) 123 Delyndia silt loam, nearly level (DeA) 124 = Delyndia silt loam, undulating (DeB) 125 = Delyndia silt loam, rolling (DeC) 126 Delyndia silt loam, hilly (DeD) 127 Delyndia-Sa!amatof complex (Dm) 128 Dinglishna sandy loam (Dn) 129 Dinglishna-Moose River complex (Dr) 130 Flat Horn silt loam, nearly level (FhA) 131 Flat Horn silt loam, undulating (FhB) 132 Gravelly alluvial land (Ga) 133 Gravel pits (Gv) 134 = Homestead silt loams, nearly level (HoA) 135 Homestead silt loams, undulating (HoB) 136 = Homestead silt loam, rolling (HoC) 137 = Homestead silt loam, hilly (HoD) A2-5 1.3a = 139 140 141 = 142 143 144 145 146 = 147 = Homestead silt loam, moderately steep (HoE) Jacobsen very stony silt loam (Ja) Kalifonsky silt loam (Ka) Kashwitna silt loam, nearly level (KsA) Kashwitna silt loam, undulating (KsB) Kashwitna silt loam, rolling (KsC) Kashwitna silt loam, hilly (KsD) Kashwitna silt loam, moderately steep (KsE) Kashwitna silt loam, steep (KsF) Killey-Moose River complex (Kr) 148 149 150 151 152 153 154 155 = Lucile silt loam (Lu) = Mixed alluvial land (Me) =Moose River· silt loam (Mr) = Nancy silt loam, nearly level (NaA) = Nancy silt loam, undulating (NaB) = Nancy silt loam, rolling (NaC) = Nancy silt loam, hilly (NaD) = OMIT 156 = 157 = 158 = Nancy silt loam, moderately steep (NaE) Nancy silt loam, steep (NaF) Nancy silt loam, sandy substratum, = Nancy silt loam, sandy substratum, nearly level (NcA) undulating (NcB) rolling (NcC) hilly (NeD) 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 1J7 178 179 180 181 182 183 184 185 186 187 Nancy silt loam, sandy substratum, = Nancy silt loam, sandy substratum, Nancy silt loam, sandy substratum, = Niklason fine sandy loam (W~) moderately steep (NeE) Rabideux silt loam, nearly level (RaA) Rabideux silt loam, undulating (RaB) Rabideux silt loam, rolling (RaC) = Rabideux silt loam, hilly (RaD) = Rabideux silt loam, moderately steep (RaE) = Rabideux silt loam, steep (RaF) = Rabideux silt loam, shallow, nearly level (RbA) = Rabideux silt loam, shallot•, undulating (RbB) = Rabideux silt loam, shallow, rolling (RbC) Rabideux silt loam, shallow, hilly (RbD) = Rabideux silt loam, shallow, moderately steep (RbE) Rabideux silt loam, sandy substratum, nearly level (RdA) = Rabideux silt loam, sandy substratum, undulating (RdB) = Rabideux silt loam, sandy substratum, rolling (RdC) = Rabideux silt loam, sandy substratum, hilly (RdD) Rabide~~ silt loam, sandy substratum, moderately steep (RdE) Salamatof peat (Sa) Schrock silt loam, nearly level (ShA) = Slikok mucky silt loam (Sm) = Sisitna fine sandy loam (Ss) Susitna and Niklason fine sandy loams, overflow (Sw) Terrace escarpments (Te) Tidal flats (Tf) Tidal marsh (Tm) A2-6 188 = \vasilla silt loam (Wa) 189 = Whitsel silt loam, nearly level (~fuA) 190 = Hhitsol silt loam, undulating (WhB) 191 = \vhitsol silt loam, rolling (WhC) 192 = Whitsol silt loam, hilly (WbD) 193 = Whitsol silt loam, moderately steep (WhE) 194 = Homestead silt loam, steep (HoF) ADVAu~CE COPY BELUGA-YENTNA SURVEY 401 = Coal Creek Silt Loam, 0-2% slope (010) 402 = Capps Sand, 0-2% slope (014) 403 = Drill Creek Peak, 0-3% slope (017A) 404 = Drill Creek Pea, 3-7% slope (017B) 4.05 = Chichantna Peat, 0-3% slope (018A) 406 Chichantna Peat, 3-7% slope ((018B) 407 = Salamatof Peat, 0-2% slope (019) 408 = Triumvirate Silt Loam, 0-2% sope (023) 409 = Moose River Silt Loam, 0-2% slope (024) 410 = Mutnala Silt Loam, 0-2% slope (30A) 411 = Mutnala Silt Loam, 2-7% slope (30B) 412 = Mutnala Silt Loam, 7-12% slope (30C) 413 = Hutnala Silt Loam, 12-20% slope (30D) 414 = Mutnala Silt Loam, 7-20% slope (30C-D) 415 = Mutnala Silt Loam, 20-30% slope (30E) 416 = Hutnala Silt Loam, 30-45% slope (30F) 417 = Hutnala Silt Loam, 20-45% slope (30EF) 418 = Hutnala-Chichantna Complex, 2-7% slope (30-:18CD) 419 = Nutnala-Slikok Complex, 2-7% slope (30-31B) 420 = Hutnala-Slikok Complex, 7-12% slope (30-31C) 421 = :t-1utnala-Spenard Commplex, 2-7% slope (30-:-90B) 422 = Slikok Mucky Silt Loam, 0-2% slope (31A) 423 Slikok Hucky Silt Loam, 2-7% slope (31B) 424 Starichkof Peat, 0-2% slope (33A) 425 = Starichkof Peat, 2-7% slope (33B) 426 Doroshin Peat, 0-2% slope (56A) 427 = Doroshin Peat, 2-7% slope (56B) 428 = Killey Silt Loam, 0-2% slope (63) 429 Killey-Moose River Complex, 0-2% slope (63-24) 430 Clunie Peat (64) 431 = Tidal Flats (65) 432 Susitna Fine Sandy Loam, 0-2% slope (077) 433 = Wasilla Silt Loam, 0-2% slope (079) 434 Chedatna Silt Loam, 0-2% slope (080) 435 Lucile Silt Loam, 0-2% slope (085) 436 = Lucile Sandy Substratum, 0-2% slope (086A) 437 = Spenard Silt Loam, 0-2% slope (90A) 438 = Spenard Silt Loam, 2-7% slope (90B) 439 = Talkeetna Silt Loam, 7-12% slope (93C) 440 Talkeetna Silt Loam, 12-20% slope (93D) A2-7 441 =Talkeetna Silt Loam, 20-30% slope ((93E) 442 Talkeetna Silt Loam, 30-45% slope (93F) 443 = Chuit Silt Loam, Hummocky Phase, 3-12% slope (95BC) 444 Chuit Silt Loam, Hummocky Phase, 12-30% slope (95DE) 445 Chuit Silt Loam, Hummocky Phase, 30%+ slope (95FG) 446 Chuit Silt Loam, Hummocky Phase, 20-45% slope (95EF) 447 = Rock Outcrop-Chuit Complex, 7-12% slope (96CD) 448 = Rock Outcrop-Chuit Complex, 20-45% slope (96EF) 449 ='Rock Outcrop, 45%+ slope (96G) 450 = Fluvent (107) 451 = Rabideux Silt L9am, 0-2% slope (126A) 452 = Rabideux Silt Loam, 2-7% slope (126B) 453 = Rabideux Silt Loam, 7-12% slope (126C) 454 = Rabideux Silt Loam, 12-20% slope (126D) 455 = Rabideux Silt Loam, 20-30% slope (126E 456 = Rabideux Silt Loam, 30-45% slope (126F) 457 = Judd Silt Loam, 0-2% slope (0130) 458 = Tidal Marsh (188) 459 = Rabideux Sand Substratum, 0-2% slope (0526A) · 460 =_Rabideux Sandy Substratum, 2-7% slope (0526B) 461 = Rabideux Sandy Substratum, 7-12% slope (0526C) 462 ; Niklason Fine Sandy Loam, 0-2% slope (577) 463 = Nancy Sandy Substratum (Kashihitna) (687) 464 = Susitna Niklason Complex, 0-2% slope (777) 465 = Lithic Cryorthod 7-20% complex slopes (lOOlCE) 466 = Flat Horn Silt Loam, 2-7% slope (83B) '•67 = Hewitt Peat, 0-2% slope (270) 468 = Mutnnla-Slikok Complex, 0-2% slope (30-31A) 469 = Schrock Sil.t Loam, 0-2% slope (125) 470 = Lithic Cryorthod, 7-12% slope (lOOlC) 471 = Nancy Silt Loam, 0-2% slope (87A) 472 = Nancy Silt Loam, 2-7% slope (87B) 473 = Nancy Silt Loam, 7-12% slope (87C) 474 = Talkeetna Silt Loam, 2-7% slope (93B) 475 =Lucile Silt Loam, 2-7% slope.(85B) 476 = Lucile Silt Loam, 7-12% slope (85C) 477 = Starichkof Peat, 7-12% slope (33C) 478 = Hutnala-Spenard Complex, 7-12% slope (30-90C) 479 Bernice Sandy Loam, 30-45% slope (13F) 480 Flat Horn Silt Loam, 0-2% slope (83A) 481 = Chuit Silt Loam, Hummocky Phase, greater than 45% slope (95G) 482 Seely (60B) 483 Chuit Silt Loam, ~ummocky Phase, 7-20% slope (95CD) 484 Seely (60C) 485 = Seely (60D) 486 = Hutnala-Slikok Complex, 12-20% slope (30-31D) 487 Nancy Silt Loam, Sandy Substratum, 2-7% slope (687B) 488 = Nancy Silt Loam, Sandy Substratum, 7-12% slope (687C) 489 Susitna-Niklason Overflow, 0-2% slope (677) 490 Jacobsen Very Stony Silt Loam, 0-2% slope (123) A2-8 491 = Mutnala Silt Loam, 0-7% slope (30AB) 492 Hewitt Peat, 0-2% slope (270) 493 Rabideux Silt Loam, Shallow, 0-2% slope (626) 494 }!utnala Silt Loam, nearly level (135A) 495 Hutnala Silt Loam, (135) 496 = Whitsol Silt Loam, 2-7% slope (587B) 497 Whitsol Silt Loam, 7-12% slope (587C) 498 = Mutnala-Slikok Complex, 7-12% complex slopes (30CD-31) 499 = Chuit Silt Loam, Hummocky Phase, 30-45% slope (95F) 500 = :Hutnala Silt Loam, greater than 45% slope (30G) 501 = Spenard Silt Loam, 7-12% slope (90C) 502 = Mutnala-Slikok Complex, 30-45% slope (30-31F) 503 = Killey-Moose River Complex, 0-2% slope (24-63) 504 = Homestead Silt Loam, undulating (HOB) 505 = Rough broken land (terrace escarpments) (113) 506 Talkeetna rock outcrop, greater than 45% slope (93G) 507 Whitsel Silt Loam, 30-45% slope (587F) 508 = Hhitsol Silt Loam, 20-30% slope (587E) 509 Rough Mountainous Land (9) 510 = Talkeetna Silt Loam, 0-2% slope (93A) 511 = Bernice Sandy Loam, 45%+ slope (13G) 512 Daneka Silt Loam, 2-7% slope (312B) 513 = Daneka Silt Loam, 7-12% slope (312C) 514 Daneka Silt Loam, 12-20% slope (3120) 515 = Daneka Silt Loam, 20-30% slope (312E) 516 = Daneka Silt Loam, 30-45% slope (312F) 517 = Daneka Silt Loam, greater than 45% slope (312G) 518 Daneka Silt Loam, 0-2% slope (312A) 519 = Jacobsen very stony silt loam, 7-12% slope (123C) 520 = Daneka Silt Loam, 7-20% slope (312CD) 521 = Schrock Silt loam, 2-7% slope (125B) 522 Grubstake Silt Loam, 20-30% slope (313E) 523 Jacobsen Very Stony Silt Loam, 2-7% slope (123B) 524 Grubstake Silt Loam, 7-12% slope (313C) 525 = Homestead Silt Loam, very shallow, 20-30% slope (572E) 526 = Homestead Silt Loam, very shall~w, 0-2% slope (572A) 527 = Kliskon, 7-12% slope (38C) 528 = Kliskon, 2-7% slope (38B) 529 = Rock Outcrop-Chuit Complex, greater than 45% slope (96G) 530 Talkeetna Silt Loam, 2-12% slope (9JBC) 531 = Kliskon, 0-2% slope (38A) 032 Rabideux Silt Loam, cool phase, 0-2% slope (121A) 533 = Rabideux Silt Loam, cool phase, 2-7% slope (121B) 534 Rabideux Silt Loam, cool phase, 7-12% slope (121C) 535 = Slikok Mucky Silt Loam, 7-12% slope (31C) 536 Chuit Silt Loam, Hummocky Phase, 12-20% slope (95D) 537 = Talkeetna Silt Loam, 7-20% slope (93CD) 538 = Talkeetna-Slikok Complex, 7-12% slope (93-31E) 539 = Chulitna-Slikok Complex, 7-12% slope (526-31C) 540 Chulitna-Slikok Complex, 12-20% slope (526-31D) A2-9 541 542 543 544 545 548 549 550 551 552 553 554 555 556 557 558 570 578 579 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 Watana Silt Loam, 20-30% slope (311E) Mutnala-Chichantna Complex, 2-7% slope (30-18B) (Glacial) Glacial -Mutnola Silt Loam, 12-30% slope (30DE) Mutnola-Drill Creek Complex, 12-20% slope (30-17CS) ') Yenlo Silt Loam, 2-12% slope (97BC) = Yenlo Silt Loam, 20-30% slope (97E) = Yenlo Silt Loam, 30%+ slope (97FG) = Talkeetna Silt Loam, 12-30% slope (93DE) = Yenlo-Chichantna Complex, 7-20% slope (97-18CD) = Talkeetna-Chichantna Complex, 12-20% slope (93-lSD) Talkeetna-Chichantna Complex, 20-30% slope (93-18E) = Yenlo Silt Loam, 12-20% slope (97D) = Rabideux Silt Loam (128A) = Mutnala Silt Loam, 2-12% slope (30BC) = Chuit Silt Loam, Hummocky Phase, 7-12% slope (95C) = Glacial Rubble Land Chuit Silt Loam, Hummocky Phase, 2-7% slope (95B) Spenard Silt Loam, 12-30% slope (90DE) =Whitsel Silt Loam, 12-20% slope (587D) = Youngstown Silt Loam, 0-2% slope (15A) = Youngsto\m Silt Loam, 2-7% slope (15B) = Nancy Silt Loam, Sandy Substratum, 0-2% slope (687A) = Seeley Silt Loam, 2-7% slope (60B) Tyonek Peat, 0-2% slope (20) = Yenlo Silt Loam, 0-2% slope (97A) Clunie Peat (=430) (260) = Yenlo-Drill Creek Complex, 2-7% slope (97-17B) Cobbly Coal Creek (lOR) = Inceptisol-Starichkof-Mutnala Complex, 0-7% slope (lOT) = Judd Silt Loam, 7-12% slope (130C) = Whitsel Silt Loam, 0-2% slope (587A) = Judd Silt Loam, 2-7% slope (130B) = ~fhitsol Silt Loam, 45%+ slope (587G) = Yenlo Silt Loam, 2-7% slope (97B) Yenlo Silt Loam, 7-12% slope (97C) Yenlo Silt Loam, 12-30% slope (97DE) Yenlo Silt Loam, 30-45% slope (97F) No Soil Survey (ESRI Extrapolation) 600 = Alluvial Land 601 = Susitna-Niklason Complex, 0-2% slope 602 = Salamatof peat, 0-2% slope 603 Niklason Fine Sandy Loam, 0-2% slope 604 Mutnala Silt Loam, 207% slope 605 = Mutnala-Spenard Complex, 2-7% slope 606 Starichkof Peat, 0-2% slope 607 Mutnala Silt'Loam, 12-2-% slope A2-10 608 = Slikok Mucky Silt Loam, 0-2% slope 609 Chultna Silt Loam, 2-7% slope 610 Rabideax Silt Loam, 2-7% slope 611 = Rabideux Silt Loam, 2-7% slope 612 = Rabideux Silt Loam, 7-12% slope 613 R~bideux Silt Loam, 12-20% slope 614 = Rabideux Silt Loam, 20-30% slope 615 = Rabideux Silt Loam, 30-45% slope 616 Moose River Silt Loam, 0-2% slope 617 = Doroshin Peat, 0-2% slope 618 = Spenard Silt Loam, 0-2% slope 619 = Spenard Silt Loam, 2-7% slope 620 Mutnala Silt Loam, 7-12% slope 621 = Hutnala Silt Loam, 20-30% slope 622 = Lucile Silt Loam, 0-2% slope 623 = Nancy Silt Loam, 0-2% slope 624 = Nancy Silt Loam, 30-45% slope 625 Nancy.Silt Loam, 20-30% slope 626 = Nancy Silt Loam, 2-7% slope 627 = Talkeetna Silt Loam, 2-7% slope 628 = Talkeetna Silt Loam, 7-12% slope 629 = Talkeetna Silt Loam, 12-20% slope 630 Talkeetna Silt Loam, 20-30% slope 631 Talkeetna Silt loam, 30-45% slope 632 = Deneka Silt Loam, 7-12% slope 633 = Deneka Silt Loam, 12-20% slope 634 = Deneka Silt Loam, 20-30% slope 635 Deneka Silt Loam~ greater than 45% slope 636 = Schrock Silt Loam, 0-2% slope 637 Kashwitna Silt Loam, 2-7% slope 638 Jacobsen Very Stony Silt Loam, 0-2% slope 639 = Kashwitna Silt Loam, 0-2% slope 640 = Niklason Fine Sandy Loam, 0-2% slope 641 = Bernice Sandy Loam, 30-45 % slope 642 Jacobsen Very Stony Silt Loam, 2-7% slope 643 = Mixed Alluvial Land 644 = Killey-Hoose River Complex, 0-2% slope 645 = Hoose River Silt Loam, 0-2% slope 646 Mutna1a Silt Loam, 12-20% slope 647 Hutnala Silt Loam, 30-45% slope 648 = Kashwitna Silt Loam, 7-12% slope 649 Nancy Silt Loam, 12-20% slope 650 = Killey-Moose River Complex, 0-2% slope 651 Chuit Silt Loam -Hummocky Phase, greater than 45% slope 652 Chuit Silt Loam -Hummocky Phase, 3-12% slope 653 Chuit Silt Loam -Hummocky Phase, 12-30% slope 654 Chuit Silt Loam -Hummocky Phase 30-45% slope 655 Rock Outcrop, greater than 45% slope 656 = Judd Silt Loam, 0-2% slope 657 = Hewitt Peat, 0-2% slope A2-ll 658 Fluvent 659 Susitna Fine Sandy Loam, 0-2% slope 660 Starichkof Peat, 2-7% slope 661 Doroshin Peat, 2-7% slope 662 = Yenlo Silt Loam, 12-30% slope 663 = Yenlo Silt Loam, 30-45% slope 664 = Yenlo Silt Loam, 30%+ slope 665 Youngstown Silt Loam, 0-2% slope 666 = Youngstown Silt Loam, 2-7% slope 667 = Rock Outcrop-Chuit Complex, 7-12% slope 668 = Chuit Silt Loam, Hummocky Phase, 20-45% slope 669 = Talkeetna Silt Loam, 7-20% slope 670 = Whitsol Silt Loam, 2-1% slope 671 = Whitsol Silt Loam, 7-12% slope 672 = Whitsol Silt Loam, 12-20% slope 673 = Whitsol Silt Loam, 20-30% slope 674 = Whitsol Silt Loam, 30-45% slope 675 = Rabideux Silt Loam, cool, 0-2% slope 676 Rabideux Silt Loam, cool, 2-7% slope 677 Cobbly Coal Creek 678 = Chuit Silt Loam, Hummocky Phase, 20-45% slope 679 = Mutnala Silt Loam, 2-12% slope 680 = Killey Silt Loam, 0-2% slope 681 = Spenard Silt Loam, 7-12% slope 682 = Spenard Silt' Loam, 12-20% slope 683 = Wasilla Silt Loam, 0-2% slope 684 = Fluvent 685 = Hutnala-Slikok Complex, 2-7% slope 686 = Yenlo Silt Loam, 2-12% slope 687 Chichantna Peat, 3-7% slope 698 Glacial Rubble Land 699 Glacial 999 = Water Columns (17, 18, 19, 20, 21, 22 and 23) 00000000 = No Data LAND USE Land Use (Columns 24, 25, 26 and 27) AGRICULTURE 0110 Pasture 0120 Grain, Grass 0130 Vegetables 0140 Dairy A2-12 I. 0150 = Other RESIDENTIAL 0210 Dispersed Residential 0220 = Low Density 0230 = Medium Density 0240 High Density 0250 = Commercial (Hotel, Motel or Lodge) C0~1ERCIAL 0310.= Eating and Drinking Establishment 0320 = Food 0330 = General Merchandise 0340 = Apparel and Accessories 0350 = Furniture or Home Furnishings and Equipment 0360 = Building Materials, Hardware or Farm Equipment 0370 = Auto Dealers or Gasoline Service Stations 0380 = Other M...WUFACTURING 0410 = 0420 = 0430 = 0440 Food Lumber or Wood Products Gravel or Cement Products Other SERVICES 0510 = Hiscellaneous Business Services 0520 = Personal 0530 = Professional 0540 = Finance, Construction or Real Estate 0550 Repair 0560 ·-Other PUBLIC/QUASI-PUBLIC SERVICES 0610 0620 0630 0640 0650 0660 = 0670 = 0680 = Hilitary Governmental Institution Educational Institution Health Institution Church or Community Center Cemetary Solid Waste Disposal Site Other COMHUNICATION FACILITY A2-13 0700 = Communication Facility, Undifferentiated TRANSPORTATION FACILITY 0810 = Airport 0811 = Public Access 0812 = Private Access 0820 = Marine, Port or Dock Facility UTILITY 0900 = Utilities, Undifferentiated RESOURCE EXTRACTION 1020 = Sand/Gravel Quarry and Borrow Pit 1030 = Surface Mine 1040 = Gas Well Field 1041 = Inactive 1042 = Active 1050 = Oil T..J'ell Field 1051 = Inactive 1052 = Active 1060 = timber 1070 = Mineral Extraction Site MIXED URBAN BUILT UP 1100 = Mixed Urban Built Up UNUER CONSTRUCTION 1200 = Under Construction VAC&~T DISTURBED 1300 = Vacant Disturbed OUTDOOR RECREATION (Source: DNR Land Use Maps, Imagery) 1410 1420 = 1430 Harine Boat Launching Sites Public Park, Campground, Refuge Private Resort, Park, Group Camp RECREATION (Source: DNR Recreation Hap) 1510 = Bird Watching 1520 = Bird Watching/Mountaineering 1530 Mountaineering A2-14 1540 Lake Boating/Lake Canoeing 1550 Lake Boating/Lake Canoeing/Lake Fishing 1551 = Lake Boating/Lake Canoeing and Intensive Fishing 1552 = Lake Boating/Lake Canoeing and Moderate Fishing 1553 = Lake Boating/Lake Canoeing and Light Fishing 1554 = Lake Boating/Lake Canoeing and Very Light Fishing 1560 = Lake Fishing 1561 Intensive Fishing 1562 = Moderate Fishing 1563 = Light Fishing 1564 = Very Light Fishing NATURAL LANDS 1600 = Natural Lands, Undifferentiated (Including Water Bodies) VEGETATION Primary Vegetation (Columns 28 and 29) Secondary Vegetation (Columns 30 and 31) Tertiary Vegetation (Columns 32 and 33) Quaternary Vegetation (Columns 34 and 35) FOREST AND WOODLAND Closed Forest 21 22 = 24 25 26 = 27 = Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Young Stands Deciduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White_Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stands Cottonwood, Young Stands 28 Cottonwood, Medium-Aged Stands 29 = Cottonwood, Old Stands Open Forest-Woodland 31 32 33 34 35 36 = = = = = = Coniferous Forest, White Spruce, Short Stands Deciduous Forest, Mixed Forest, Medium-Aged Stands Coniferous Forest, White Spruce, Tall Stands Deciduous Forest, Mixed Forest, Old Stan~s Cottonwood, Medium-Aged Stands Cottonwood, Old Stands Closed Forest (Black Spruce Mountain Hemlock) 41 42 = Black Spruce; Short Stands Black Spruce, Tall Stands A2-15 45 = Mountain Hemlock, Short Stands 46 = Hountain Hemlock, Tall Stands Open Forest-Woodland (Black Spruce) 43 = Black Spruce, Short Stands NON FORESTED Salt Water lvetlands 50 = Salt Grassland 51 = Low Shrub 52 = Tidal marsh Tall Shrubs 60 = Alder 61 = Alder-Willo~v (streamside veg.) Low Shrub 62 = Willow Resin Birch Grassland 63 = Upland Grass Tundra 64 = Sedge-Grass 65 = Herbaceous 66 = Shrub 67 = Hat and Cushion Freshwater Wetlands 68 Sphagnum Bog 69 = Sphagnum-Shrub Bog Cultural Features 70 = Cultural Influences Barren 80 Mud Flats 81 Rock Permanent Snow and Ice A2-16 82 Snowfield 83 Glacier ~~ater 91 = Lakes greater than 40 ac. (census water) 92 =Lakes at least 10 ac., but less than 40 ac. 96 = Streams and Rivers at least 165 feet wide, but less than 500 feet wide 97 Rivers greater than 1/8 mile (census water) A2-17 1-'IANUSCRIPT lf2 SURFACE HYDROLOGY MAP DATA CLASSIFICATION AND CODING STREAL'1 NET\WRK Order Column 1 1 -8 Periodicity (Column 2) 1 = Intermittent 2 = Perennial Origin (Column 3) 1 = Non Glacial 2 = Glacial Discharge Profile (Column 4) 1 Lowland 2 Mountain Situation (Column 5) 1 = Not Within Waterbody 2 = Within Waterbody Condition (Column 6) 1 = Non Braided 2 Braided Salmon Type (Columns 7-11) 0 = 1 = King Salmon (Column 7) Sockeye Salmon (Column 8) Coho Salmon (Column 9) Pink Salmon (Column 10) Chum Salmon (Column 11) No Data Salmon Not Present 2 Salmon Present, But Not Spawning 3 = Salmon Present, Discontinuous Spawning 4 Salmon Present, Known Spawning Area A2-18 Non-Salmon Freshwater Fish Type (Column 12-15) Dolly Varden (Column 12) Arctic Char (Column 13) Rainbow Trout (Column 14) Whitefish (Column 15) 0 = No Data 1 = Not Present 2 Present WATERSHED Topologic Number (Columns 1-7)* 8th Order of Higher (Column 1) 7th Order (Column 2) 6th Order (Column 3) 5th Order (Column 4) 4th Order (Column 5) 3rd Order (Column 6 and 7) I. 8th order of higher watershed basins A. 1000000 = All basins draining into the 8th order Susitna River. B. 2000000 = All basins draining into the Cook Inlet c. 3000000 = .special watershed draining both directions; into the Susitna and the Cook Inlet. D. 4000000 = Special watershed draining both directions into McArthur River and the Cook Inlet. II. 7th order basins comprising Susitna River 8th A. 7th order basins within Susitna River 8th 1. 1200000 = Yentna River 7th III. 6th order basins A. 6th order basins comprising Susitna River 7th 1. 1210000 Yentna River 6th (13) 2. ti2oooo Skwentna River 6th (33) *GRID code in parenthesis. A2-19 IV. B. 6th order basins draining directly into the Cook Inlet 1. 2010000 = Beluga River 6th (66) 5th order basins A. 5th order basins within Yentna River 6th 1. 1211000 = East Fork Yentna River 5th (20) 2. 1212000 = West Fork Yentna River 5th (24) 3. 1213000 = Kichatna River 5th (26) B. 5th order basins within Skwentna River 6th 1. 1221000 = Talachulitna River 5th (38) C. 5th order basins draining both directions into McArthur River and Cook Inlet. 1. 4001000 = Chakachatna River 5th (94) D. 5th order basin draining directly into Yentna River 8th 1. 1202000 "" Lake Creek 5th "(out of study) E. 5th Order Basins Within Beluga River 6th 1. 2. 2011000 201l200 = Beluga River 5th (78) Coal Creek 5th (87) F. 5th order basins draining directly into the Susitna River 8th 1. 1001000 = Alexander Creek 5th (out of study area) v. 4th order basins .A. 4th order basins draining directly into Yentna River 6th 1. 1210100 = Johnson Creek 4th (18) B. 4th order basins within Kichatna River 5th 1. 1213100 = Kichatna River 4th (27) 2. 1213200 = Unnamed 4th (30) C. 4th order basins draining directly into Skwentna River 6th 1. 1220~00 = Hayes River 4th (36) D. 4th order basins draining directly into Cook Inlet A2-20 1. 2000300 = Chuitna River 4th (60) E. 4th order basins draining directly into Beluga River 6th 1. 2. 2010100 2010200 Unnamed 4th (71) = Unnamed 4th (74) F. 4th order basins within Beluga River 5th 1. 2011100 = Beluga River 4th (79) 2. 2011200 = Chichantna River 4th (83) G. 4th order basins within Chakachatna River 5th 1. 4001100 = Straight Creek 4th (96) H. 4th order basins within Lake Creek 5th 1. 1202!00 = Camp Creek 4th (out of study) I. 4th order basins within Lake Creek 5th 1. 1202!00 = Lake Creek 4th (out of study) J. 4th order basins within Coal Creek ~th 1. 2012100 = Coal Creek 4th (88) 2. 2012200 = \-lest Fork Coal Creek 4th (90) K. 4th order basins 'vithin Alexander Creek 5th 1. 2. 1001100 1001200 = Wolverine/Lower Sucker Creek 4th Alexander Creek 4th L. 4th order basins within Talachulitna River 5th 1. 2. 3. 1221100 1221200 1221300 VI. 3rd order basins = Talachulitna Creek 4th (42) = Talachulitna River 4th (45) Friday Creek 4th (49) A. 3rd order basins draining directly into Lake Creek 5th 1. 1202004 =Home Creek 3rd (8) B. 3rd order basins within Camp Creek 4th 1. 12021~ =Mills Creek 3rd (9) 2. 1202102 = Camp Creek 3rd (10) A2-21 C. 3rd order basins within Lake Creek 4th 1. 1202201 = Sunflower Creek 3rd (11) 2. 1202202 = Lake Creek 3rd (12) D. 3rd order basins drainiing directly into Yentna River 6th 1. 1210001 = Hewitt Creek 3rd (14) 2. 1210002 =Donkey Creek 3rd (15) 3. 1210003 = Unnamed 3rd (16) 4. 1210004 = Clearwater Creek 3~d (17) E. 3rd order basi~s within Johnson Creek 4th 1. 12101.9..!. = Red Creek 3rd (19) F. 3rd order basins draining directly into East Fork Yentna River 5th 1. 1211001 = Rich Creek 3rd (21) 2. 1211002 = Unnamed 3rd (22) 3. 1211003 = Unnamed 3rd (23) G. 3rd order basins draining directly into West Fork Yentna River 5th 1. 1212'0.9..!. = Unnamed 3rd (25) H. 3rd order basins within Kichatna River 4th 1. 1213101 = Unnamed 3rd (28) 2. 1213102 = Nakochna River 3rd (29) I. 3rd order basins within Unnamed 4th (1213l00) 1. 1213201 = Unnamed 3rd (31) 2. 1213202 = Unnamed 3rd (32) J. 3rd order basins draining directly into Skwentna River 6th 1. 1220001 = Shell Creek 3rd (34) 2. 1220002 = Canyon· Creek 3rd (35) K. 3rd order b~sins within Hayes River 4th 1. 12202.9..!. = Unnamed 3rd (37) L. 3rd order basins draining directly into Talachulitna River 5th 1. 1221003 = Thursday Creek 3rd (39) 2. 1221004 = Unnamed 3rd (40) 3. 1221005 = Deep Creek 3rd (41) A2-22 }1. 3rd order basins within Talachulitna Creek 4th 1. 1221101 = Unnamed 3rd (43) 2. 1221102 = Talachulitna Creek 3rd (44) N. 3rd order basins within Talachulitna River 4th 1. 1221201 = Talachulitna River 3rd (46) 2. 1221202 = Unnamed 3rd (47) 3. 1221203 = Unnamed 3rd (48) o. 3rd order basins within Friday Creek 4th 1. 1221301 = Friday Creek 3rd (50) 2. 1221302 = Saturday Creek 3rd (51) 3. 1221303 = Unnamed 3rd (52) P. 3rd order basins draining directly into Cook Inlet 1. 2000001 = Theodore River 3rd (54) 2. 2000002 = Lewis River 3rd (55) 3. 2000003 = Three Mile Creek 3rd (56) 4. 2000004 = Old Tyonek Creek 3rd (57) 5. 2000005 = Nikolai Creek 3rd (58) 6. 2000006 = Chuitkinachna Creek 3rd (59) Q. 3rd order basins within Chuitna River 4th 1. 2000301 = Lone Creek 3rd (61) 2. 2000302 =Unnamed 3rd (62) 3. 2000303 = Chuit Creek 3rd (63) 4. 2000304 = Chuitna River 3rd (64) 5. 2000305 = Unnamed 3rd (65) R. 3rd orders basins draining directly into Beluga River 6th 1. 2010001 = Unnamed 3rd (67) 2. 2010002 = Unnamed 3rd (68) 3. 2010003 = Unnamed 3rd (69) 4. 2010004 = Pretty Creek 3rd (70) S. 3rd order basins within unnamed 4th (2010200) 1. 2010201 = Unnamed 3rd (75) 2. 2010202 = Unnamed 3rd (76) 3. 2010203 = Unnamed 3rd (77) T. 3rd order basins within Beluga River 4th 1. 2011101 =Unnamed 3rd (80) A2-23 2. 2011102 = Unnamed 3rd (81) 3. 2011103 = Unnamed 3rd ( 82) u. 3rd order basins within Chichantna River 4th 1. 2011201 = Unnamed 3rd (84) 2. 2011202 = Chichantna River 3rd (85) 3. 2011203 = Unnamed 3rd (86) v. 3rd order basins within Coal Creek 4th 1. 20121Ql = Unnamed 3rd (89) w. 3rd order basins within West Fork Coal Creek 4th 1. 2011101 = West Fork Coal Creek 3rd (91) 2. 2012202 = Unnamed 3rd (92) X. 3rd order basins within unnamed 4th (2010100) 1. 2010101 =Unnamed 3rd (72) 2. 2010102 = Unnamed 3rd (73) Y. 3rd order basins within \volverine/Lower Sucker Creek 4th 1. 1001102 = Wolverine Creek 3rd (4) - z. 3rd order basins within Alexander Creek 4th 1. 1001201 = Bear Creek 3rd (5) 2. 1001202 = Clear Creek 3rd (6) 3. 1001203 = Deep Creek 3rd (7) AA. 3rd order basins draining directly into Alexander Creek 5th 1. 10010Ql = Trail Creek 3rd (3) BB. 3rd order basins draining directly into Susitna River 8th 1. 10000~ =Unnamed 3rd (2) CC. 3rd order basins both directions into Susitna River and Cook Inlet· 1. 3000001 = Ivan River 3rd (93) DD. 3rd order basins draining directly into Chakachatna River 5th 1. 40010Ql = Unnamed 3rd (95) EE. 3rd order basins within Straight Creek 4th A2-24 1. 4001101 = Straight Creek 3rd (97) 2. 400110Z = Unnamed 3rd (98) A2-25 MANUSCRIPT 113 POINTS AND LINEAR FEATURES ~L~ DATA CLASSFICATION AND CODING NATURAL LINES No data (Columns 1 and 2) 00 = No data Escarpments, Column 3 (Lines) 1 = Not an Escarpment 2 = Escarpment Fault Lines, Column 4 (Lines) 1 Not a Fault Line 2 Possible Fault (requires field verification) 3 = Suspected or Inferred Fault 4 = Known Fault CULTU~\L LINEAR FEATURES* Roads/Trails/Infrastructure Network, Column 1 and 2 Roads 11 = Non Paved Road 12 = Paved Road 13 Non Paved Road and Existing Utility Corridor 14 Paved Road and Existing Utility Corridor Trails 21 = Existing Trail (1) Seismic Survey Lines 31 = Existing Seismic. Survey Line (l) Utility Corridors 51 = Existing Utility Corridor (2) NOT USED (Columns 3, 4, 5, 6, 7, 8, 9, 10, 11~ 12, 13 and 14) 000000000000 = No Data * Grid codes in parenthesis A2-26 CULTURAL POINTS Extractive Sites, Column 15, 16, 17 and 18 1020 Sand/Gravel Quarry and Borrow Pit 1030 Subsurface Mine Entrance 1040 = Gas Well 1041 = Inactive 1042 = Active 1050 = Oil Well 1051 = Inactive 1052 = Active 1060 = Abandoned Gas or Oil Well A2-27 MANUSCRIPT 114 LAND STATUS MAP DATA CLASSIFICATION AND CODING TOWNSHIP Township, Columns 1, 2, 3, 4, 5, 6 and 7 Township Number of Township, Column 1 and 2 (i.e., 07 =Township 7) North/South Designation, Column 3 1 = North 2 = South Name of Baseline, Column 4 1 = Unnamed Baseline Range Number of Range, Column 5 and 6 (i.e., 12-Range 12) East/West Designation, Column 7 1 = East 2 = Hest A-2-28 Appendix B Data Code Descriptions Integrated Terrain Unit Nap Surface Hydrology Nap Points and Linear Features Map Land Status Map SLOPE MANUSCRIPT Ill INTEGRATED TERRAIN UNIT MAP DATA CODE DESCRIPTIONS Slope is defined as the angle which any part of the earth's surface makes with a horizontal datum. For the Talkeetna and Beluga Subbasin resource inventories, slope was mapped by percent slope class. The assigned value represents the average percent slope within the terrain unit polygon. Some variation will occur within each polygon because of minor surface fluctuations. The same slope classes were chose-n to be mapped on the terrain units that were mapped as phase breaks in SCS soil surveys. 0 -3% = Nearly level 3 -7% Undulating, gently sloping 7-12% = Rolling 12-20% Hilly 20-30% = Moderately Steep 30-45% = Steep 45% and greater = Extremely Steep Percent Slope Angle of Inclination Slope Ratio Gradient (feet per mile) 3 1 43' 33.3:1 158.4 7 4 r 14.3:1 369.6 12 6 53' 8.3:1 633.6 20 11 28' 5:1 1056 30 17 11' 3.3:1 1584 45 25 47' 2.2:1 2376 B-1 LANDFOR.l'1S Landforms are the distinctive configurations of the land surface and are environmentally significant because they influence the place to place variation in ecological factors such as water availability and exposure to radiant solar energy. PHYSIOGRAPHIC DIVISION Physiographic division is a type of landform classification which divides the land surface into broad major categories. 1 = Mountain: A sloping mass of land considerably higher than its surroundings. Its summit area is smaller than its base and has an elevation over 1500 feet. 2 Hill: An elevated portion of the earth's surface which has an undulating to moderately steep sloping surface. Hills are generally found along the foot of mountainous areas and have elevations less than 1500 ft. 3 = Slope: A moderately steep to steep portion of the earth's surface generally located between valley and mountain or hill and mountain physiographic divisions. 4 = Plateau: An elevated tract of comparativ:ely flat or level land. 5 Valley: A relatively flat depression in the earth's surface formed either by erosion or by structural processes. 6 Coastal Lowland: Regional features of low relief bounded seaward by the shore and landward by highlands. 7 = Glacier: A extensive slowly flowing body of ice formed on land by snow transformed into ice by pressure recrystallization of the snow. 8 Haterbody: Any accumulation of water which occurs on the earth's B-2 surface. For the Willow Sub-basin Resource Inventory, only waterbodies over 5 acres and rivers over 1/8 of a mile wide were mapped. LANDFOfu~ TYPE A landform type is any element of the landscape characterized by a distinctive surface expression, internal structure, or both, and sufficiently conspicuous to be included in a physiographic description. Physiographic divisions are subdivided by the more detailed landform type classification. Glacial Glacial landforms are created or deposited by a glacier. 110 = Moraine: An accumulation of glacial till (glacial sediments ranging in size rom huge boulders to fine dust) deposited chiefly by direct glacial action. The resulting landforms are undulating, poorly drained, and exhibit a topography which is independent of control by the surface on which the moraine lies. 111 = End Moraine: A moraine marking the terminal position of a valley glacier. 112 = Lateral Moraine: A low long ridge-like moraine deposited on or near the side margin of a mountain glacier. 113 = }ledial Moraine: An enlongated moraine carried in or upon ~he middle of a valley glacier and parallel to its side, formed by the merging of adjacent lateral moraines below the junction of two coalescing valley glaciers. 114 }forainal Ridge: A pronounced mound or ridge of till within a moraine. B-3 115 Ragen Moraine: A ridge-like moraine transverse to the direction of glacial movement formed beneath the glacier in zones of shearing ice sheets. 116 = Ground Moraine: A fairly even thin layer of till deposited directly from a glacier and having an undulating surface. 120 = Till: Unsorted, unstratified sediments carried and deposited by a glacier. It is composed of rock fragments of all sizes and types. 121 = Till, Undifferentiated: A thick layer of till deposited directly from a glacier onto the earth's surface. Till often completely burys pre-existing topography giving rise to nearly flat level surfaces. The -composition of the till, both rock type and fragment size, is unspecified. 130 Drumlin: Till molded by glacial ice into low, enlongated hills with the 'longer axis parallel to the direction of the glacial movement. 131 Drumlin-Drumloid: This landform class is a combination of drumlin and drumloid. A drumlin is till molded by glacial ice into low, enlongated hills with the longer axis parallel to the direction of the glacial movement. A drumloid is similar to a drumlin except that its shape is irregular. 132 Rock Drumlin-Drumlinoid: This landform class ls a combination of rock drumlin and drumlinoid. Rock drumlin is a smooth, steamlined hill that resembles a drumlin, but has a bedrock core usually veneered with a thin layer of till formed by glacial erosion. A drumlinoid is an irregularly shaped rock drumlin. B-4 Fluvioglacial Fluvioglacial landforms are formed or deposited by glacial meltwater. 210 = Outwash: Stratified glacial debris, mainly sand and gravel, deposited by glacial meltwater beyond the end moraine or the margin of an active glacier. 220 Abandoned Outwash Channel: Outwash deposited by a remnant stream channel which once emerged from a glacier, braided in form, now often covered by wetland and associated organic deposits. 230 Remnant Subglacial Stream Valey: A stream valley formed by a stream which flowed beneath the once overlying glacier. 240 Kame Complex: Mounds, hills, or hummocky areas composed of poorly sorted sands and gravels deposited by glacial meltwater in depressions in the ice or fan deposits formed against the edge of an ice sheet. As the glacier melts their form is modified by slumping and settling. 250 = Esker: Low, narrow, sinuous ridges of poorly sorted sands and gravel deposited oy streams that ran on, within, or beneath a glacier. 260 Crevasse Filling: Type of kame that is ridge-like. They are composed of poorly sorted sand and gravels, and are similar in appearance to eskers except that they are smaller and shorter and may extend in any direction to the flow of the glacier (where eskers usually parallel the glacial flow). 270 Side Glacial Drainage Channels: Drainage channels cut into the hillside alon~ the margins of a glacier by stream. 280 Flute: Small, longitudinal, shallo\v channels between small parallel ridges, found on moraines. B-5 Aeolian Aeolian landforms are shaped or formed by the wind. 310 Dune: A ridge of sand formed by and constantly changed by wind. 311 Dune and Outwash Complex: A dune which formed on outwash. Littoral Littoral landforms are situated on or near a coast. 410 = Longshore Bar: A low, elongated sand ridge, built chiefly by wave action, occurring at some distance from and extending generally parallel with the shoreline. Abandoned Coastline: Marks the locations of past ocean levels. They are formed either by a reduction in the ocean level or an emergence of the coast. Survey Flood Zone: Areas which have been surveyed by the Army Corps of Engineers, and established to be flood prone~ Not Surveyed Flood Zone: Areas established by Aerial Information System (AIS) to be flood prone by using the imagery, topographic maps, soil maps, and soil descriptions. 411 = Longshore Bar Within Abandoned Coastline, Not surveyed Flood Zone: This longshore bar is located on the seaward side of the abandoned coastline and has been established to be flood prone by AIS. 412 = Longshore Bar Within Abandoned Coastline, Surveyed Flood Zone: A longsore bar located on thr seaward side of the abandoned coastline which has been established to be flood prone by the Army Corps of Engineers. B-6 420 Beach: The coastal zone extending from the low tide limit to a place where there is a definite change in material or physiographic form. It must at least partly consist of unconsolidated material like sand, cobble, or boulders. 430 = Barrier Spit: A type of longshore bar connected at one end to the mainland. 440 Delta: A low, nealy flat accumulation of sediments deposited where rivers empty into lakes or ocean. 441 = Delta-Flood Plain Within Abandoned Coastline, Not Surveyed Flood Zone: A type of delta within the active flood plain of a river and located on the seaward side of the abandoned coastline. It has also been established to be flood prone by AIS. 442 Delta-Flood Plain Within Abandoned coastline, Surveyed Flood Zone: A type of delta within the active flood plain of a river and located on the sea,~ard side of the abandoned coastline. It has been established to be flood prone by the Army Corps of Engineers. 443 = Delta-Flood Plain, Not Surveyed Flood Zone: A type of delta within the active flood plain of a river. It has been established to be flood prone by AIS. 444 Delta-Flood Plain, Surveyed Flood Zone: A type of delta within the active flood plain of a river. It has been established to be flood prone by the Army Corps of Engineers. 445 = Delta and Outwash Complex: This landform type is a mixture of delta and outwash landform types. It usually occurs on the interface between the two landform types. B-7 450 Tidal Flat: A nearly horizontal, marshy or barren tract of land that is alternately covered and uncovered by the rise and fall of the tide, and consists of unconsolidated se~iments, mostly mud and sand. 451 Tidal Flat Within Abandoned Coastline, Not Surveyed Flood Zone: A type of tidal flat located on the seaward side of the abandoned coastline which has been established to be flood prone by AIS. 452 = Tidal Flat Within Abandoned Coastline, Surveyed Flood Zone: A type of tidal flat located on the seaward side of the abandoned coastline which has been established to be flood prone by the Army Corps of Engineers. 460 = Coastal Plain: A sediment-covered area of continental shelf recently emerged above sea level. Fluvial Fluvial landforms are formed or shaped by flowing water. 510 = Active Channel: A river plus all of its ephemeral sand bar deposits. 511 Active Channel, Not Surveyed Flood Zone: Active channels which have been established to be flood prone by Aerial Information Systems. 512 = Active Channel, Surveyed Flood Zone: Active channel which have been established to be flood prone be the Army Corps of Engineers. 520 River Bar: Ephemeral, alluvial deposits composed largely of silt, sand or gravel. They are mostly unvegetated, but some might have grass and shrub cover. 521 = Ri~er Bar, Not Surveyed Flood Zone: River bar which has been established to be a flood prone area by Aerial Information Systems. 522 = River Bar, Surveyed Flood Zone: River bar which has been established to be flood prone by the Army Corps of Engineers. B-8 530 Flood Plain: A flat strip of land bordering a river. It was constructed or is in the process of being constructed by the present river in its existing regime and is covered with water when the river overflows its bank at time of high water. Active Flood Plain: A flood plain which is subject to periodic, often yearly, flooding. Abandoned Flood Plain: A remnant flood plain, portions of which may be infrequently flooded. 531 = Active Flood Plain, Not Surveyed Flood Zone: Active flood plain which has been established to be flood prone by Aerial Informtion Systems. 532 = Active Flood Plain, Surveyed Flood Zone: Active flood plain which has been established to be flood prone by the Army Corps of Engineers. 533 = Abandoned Flood Plain, Not Surveyed Flood Zone: Abandoned flood plain which has been established to be flood prone by Aerial Information Systems. 534 = Abandoned Flood Plain, Surveyed Flood Zone: Abandoned flood plain which has been established to be flood prone by the Army Corps of Engineers. 550 = Alluvial Plain: An extensive, flat area resulting from the deposition of thick deposits of alluvium. Portion~ of the alluvial plain m~y be subject to infrequent flooding. B-9 560 = Alluvial Fan/Cone: A body of stream deposits whose surface approximates a segment of a cone that radiates downslope from the point where the stream leaves a mountainous area. Alluvial fans and cones have greatly diverse sizes, slopes, types of deposits and source area characteristics. 570 = Lacustrine Deposits: Material deposited from lake water. Many nearly level fine grained soils have developed from such deposits from lakes that have long since disappeared. Mass Wasting Mass wasting is a variety of processes by which large masses of earth material are moved by gravity either slowly or quickly from one place to another. 610 = Colluvium: Unconsolidated debris, rock fragments and soil, carried by - sheet wash from hillsides to the base of the slope. 620 = Talus: A collection of loose rock fragments that have accumulated in a sloping pile at the foot of a steep slope. 630 =Landslide Deposits: ·Materials associated with downslope transport by means of gravity of soil and rock debris. 640 Rock Glacier: A mass o£ poorly sorted angular boulders or fine material cemented by interstitial ice, occurring in high mountains in a permafrost area, derived from a cirque wall or other steep cliff by frost action. 650 Mine Tailings: Those portions of washed ore (usually rock fragments) that are regarded as too poor to be treated further. They are artificially deposited usually near a mining operation. B-10 Tectonic Uplift Tectonic uplift is a process by which land surfaces are elevated due to deformation of the earth's crust. 710 = Upland Valley: Any hollow or lm-1 lying area bounded by hills or mountain slopes. It i"s usually traversed by a stream or river which receives the drainage of the surrounding heights. An upland valley is one which is found within the mountain physiographic province class. 720 Mountain Sideslope: The sloping portion of land found within the mountain physiographic province class. 730 Mountain Ridgetop: The gently sloping area found on the summit of a mountain. It is surrounded on at least two sides by steep mountain sideslopes. Haterbody A waterbody is any accumulation of water which occurs on the earths surface. For the Talkeena and Beluga Subbasin Resource Inventories only waterbodies over 5 acres and rivers over 1/8 of a mile wide have been mapped. 810 Sea: An ocean or a large body of salt water. 820 = Lagoon: An elongated body of water separated from the open sea by longshore bars, which has little connection with the sea. 821 Lagoon Within Abandoned Coastline, Not Surveyed Flood Zone: A lagoon which lies on the seaward side of the abandoned coastline and which was determined to be flood prone by AIS. 822 Lagoon Within Abandoned Coastline, Surveyed Flood Zone: A lagoon which lie on the seaward side of the abandoned coastline and ,.,hich was determined to be flood prone by the Army Corps of Engineers. ·B-11 830 = Lake: A body of fresh water enclosed by land. Only lakes five acres and larger were mapped for the Talkeetna and Beluga Subbasin Resource Inventories. 831 Lake 832 = Lake Within Abandoned Coastline, Not Surveyed: A lake which lies on the seaward side of the abandoned coastline and which was determined to be flood prone by AIS. 833 = Lake Within Abandoned Coastline, Surveyed Flood Zone: A lake which lies on the sea~vard side of the abandoned coastline and which was determined to be flooa prone by the Army Corps of Engineers. 834 Lake in Active Flood Plain, Not surveyed Flood Zone: A lake which is located in an active flood plain and which was determined to be flood prone by AIS. 835 = Lake in Active Flood Plain, Surveyed Flood Zone: A lake which is located in an active flood plain and which was determined to be flood prone by the Army Corps of Engineers. 840 = River: A natural stream of water, fed by converging tributaries, glaciers, or ground water. 841 River, Not Surveyed Flood Zone: A river which has been established as a flood prone area by Aerial Information systems. 842 = River, Surveyed Flood Zone: A river which has been established as a flood prone area by the Army Corps of Engineers. Ice and Snow Non-vegetated areas covered with ice, (glaciers) or snow (permanent snowfield) year round. B-12 910 Glacier: An extensive slowly flowing body of ice formed on land by snow transformed into ice by pressu~e recrystallization of the snow. 920 = Permanent Snowfield: Areas covered throughout the year by snow. Permanent snowfields are found in the higher elevations. GENERAL GEOLOGY General Geology is divided into the following subsections: Surficial Geology and Bedrock Geology. To assist in interpreting their description~, a brief glossary of some important terms is provided at the end of this set of code descriptions. SURFICIAL GEOLOGY Surficial Geology describes the material occurring on the earth's surface, consisting of unconsolidated residual, alluvial deposits, glacial deposits, or.bedrock surfaces. 1 = No Surficial Deposits: Large areas within the upland and mountain areas of the study area were coded as having no significant surficial deposits. However, much of the lower slopes within this area do have a thin veneer of glacial till and colluvium and within valley bottom, alluvium. 2 = Surficial Deposits: Includes glacial till and outwash, channel fill, alluvium, colluvium and loess deposits. The lowland valley areas are covered by thick deposits of glacial drift and alluvial sediment that consists mainly of gravelly and sandy material, and deposits of silty windlaid sediments and volcanic ash. 3 = Waterbody: Only waterbodies larger than 5 acres were mapped. 4 Glacier: Areas of glacial ice and/or permanent snowfields on the surface. B-13 BEDROCK GEOLOGY Bedrock Geology describes the rock formation, ages and types underlying those in surficial geology. 01 = Tertiary Undifferentiated: All the tertiary age formations not identified as a particular formation. 02 = Tertiary Intensive: Made up of dikes, sills, and stock; Felsic to mafic of tertiary age. 03 = Tsadaka Formation: A formation of conglomerates, sandstone, and siltstone of tertiary age. 04 = Arkose Ridge Formation: This unit consists of arkosic sandstone, conglomerate, and shale of paleocene age. OS = Chickaloon Formation: This unit is composed of claystone, siltstone, sandstone, coal-bearing beds, and conglomerate of Paleocene age. 06 = Tertiary/Cretaceous Plutonic: A general grouping of a pluton mass, or body of igneous rock formed beneath the earth's surface, that has an origin sometime between the Tertiary and Cretaceous periods. 07 = Paleozoic/Jurassic/Cretaceous: A general grouping of partially changed unidentified rock formations found with these periods. 08 = Mesoi~/Paleozoic Metamorphozed Schist (~~s): Formation of a medium or coarse grained rock changed over time. 09 = Waterbody 10 =Tyonek Formation (Tts): Ths formation is comp~ised of predominantly sandstone, but also includes siltstone, coal-bearing beds, and conglomerate of Ogliocene age. The conglomerate may be locally the dominant rock type. The Tyonek formation is part of the Kenai Group. B-14 11 }1esozoic Marine Sedimentary Rocks, Undivided (Kju): This designation is utilized to refer to an unnamed body of rocks consisting primarily of grawacke, shale, siltstone, argillite, and chert of Jurassic to Cretaceous age. 12 Metamorphosed Volcanic Rocks (Pvz): This designation is utilized to refer to a body of metavolcanic rocks of Paleozoic age. 13 Undifferentiated Volcanic Rocks (Tv): This unit is utilized to refer to all unnamed volcanic rocks of Tertiary age. These volcanics may occur as extensive flows, hypabyssal intrusive rocks, pyroclastic tuffs and/or volcanic breccias. 14 =Intrusive Igneous Rock, Granite or Granodiorite (Ruth Pluton) (Tmr): This designation refers to the Ruth Pluton, which consists of a number of shallow, forcibly emplaced, epizonal plutonic bodies of granodiorite composition formed during the Paleocene to possibly Eocene Age. 15 Sterling Formation (Tps): This unit is comprised of sandstone and siltstone beds with some coal-bearing strata of Miocene to Pliocene Age. The Sterling Formation is considered part of the Kenai Group. 16 Intrusive Igneous Rock, Granite or Grandodiorite (Kahiltna Pluton) (Tmk): The designation refers to the Kahiltna Pluton, which is composed of numerous forcibly placed, epizonal plutonic bodies of granite and/or granodiorite formed during Tertiary times. 17 Undifferentiated Sedimentary Rocks (Tsu): This unit refers to all the Paleocene to Pliocene (Tertiary) sedimentary formations occuring within the study area. This designation is used primarily when the body of rock cannot be correlated to any specific formation. These formations B-15 include the Kenai Group, Tsadaka Formation, West Foreland Formation, ~{ishbone Formatiqn, Arkose Ridge Formation, Chickaloon Formation and others. : 18 = Glacial: This unit refers to glacial ice and permament snowfields which are of sufficient thickness to obscure the identification of the underlying country rock. 19 =Kenai Group (Tku, Tkm, Tki): This group is composed of sandstone, siltstone, coal-bearing beds, and conglomerate of Oligocene to Pliocene age. The unit consists of the Sterling Formation, the Beluga Formation, the Hemlock Conglomerate, and the Tyonek Formation. I 20 Landslide Deposits (Qls): This unit is comprised of mass-wasting products of Quaternary age. The unit is considered part of the surficial cover deposits. 99 = Water TE&~S Clastic Consisting of fragments of rocks or of organic structures that have been moved individually from their places of origin. Claystone -An altered feldspathic igneous rock in which the groundmass or even the entire rock has been reduced to clay minerals. Dikes -Tabular bodies of igneous rock that cut across the structure of adjacent rocks or cut massive rocks. Most dikes result from the intrusion of magma. Felsic-A rock containing one or all of the following minerals: Feldspar, feldspathoids, and silica. B-16 Igneous -Formed by solidification from molten or partially molten state. Rocks formed in this manner belm~ the surface are called plutonic roc"lt.s. Loess - A homogertous nonstratified sediment of silt, fine sand and clay deposited primarily by the wind. Mafic-Synonomous with "dark minerals", composed predominantly of the magnesium rock-forming silicates. Metamorphic -Rocks created by high temperatures and pressures which deform the existing rocks without melting them. Monogenetic Polygene tic Originating in one way or from one source. Originating in various ways or from various sources; formed at different places or times or from different parts. Sandstone - A cemented detrital sediment composed mostly of quartz grains. Sills -An intrusive body of igneous rock which has been emplaced parallel to the bedding of the intruded rock. Siltstone - A very fine grained consolidated clastic rock composed mostly of particles of silt grade. Stock - A body of plutonic rock that covers less than 40 square miles, has steep contacts (places where different rock types come together), and may or may not cut across the bedding of adjacent rocks. ECON0:':-1IC GEOLOGY No Data for Beluga Subbasin Economic Geology outlines those areas with geologic resources of possible practical utility. These utilities include the extraction and use of metal bearing minerals, construction materials and coal. B-17" Potential Deposits: This designation refers to those areas which have a high probability of possessing deposits of the rock or mineral or the combination of rocks and minerals in question. Surficial Deposits: This designation refers to those areas with known surface deposits of the rocks in question. Recognized Mineral Areas: This designation refers to those areas which have a previous history of possessing the minerals in question. 00 = No Mineral Deposits or No Data 01 Surficial Deposits of Gravel, Gravel and Sand, or Sand 02 =Potential Deposits of Gold, Silver,· Copper, Tungsten or Molybdenum 03 = Potential Deposits of Copper, Gold, Silver or Molybdenum 04 Potential Deposits ~f Coal Field 05 Potential Deposit of Uranium 06 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Coal Field and Uranium 07 = Potential Deposits of Coal Field and Uranium 08 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposit of Uranium 09 = ?otential Deposits of Uranium, Copper and Gold 10 Potential Deposits of Copper and Gold 11 = Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits o£ Copper and Gold 12 = Potential Deposits of Uranium, Copper, Gold, Silver and Molybdenum 13 Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposit of Coal Field 14 = Potential Deposits of Coal Field, Gold, Silver, Copper and Molybdenum Recognized Mineral Areas 15 Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Gold, Silver, Copper and Molybdenum Recognized Mineral Arens 16 = Potential Deposits of Gold, Silver, Copper and Molybdenum Recognized Nineral Areas 17 Potential Deposit of Gold 18 Surficial Deposits of Gravel, Gravel and Sand, or Sand Potential Deposits of Coal Field, Gold, Silver, Copper and Nolybdenum Recognized Mineral Areas 99 Water B-18 RELATIVE GEOLOGIC TIME ERA PERIOD EPOCH ATOHIC Tit·1E I Late Holocene 11,000 Quaternary r--500 ,000 Late !Early Pleistocene 2 mill ion Cenozoic Pliocene 12 million l~i ocene 26 million Early Tertiary Ol i aocene 38 mill ion Eocene · 54 mill ion Paleocene 55 million ' Late Cretaceous Early 136 million Late Jurassic f1i ddl e Mesozoic Early 193 mi 11 ion Late Triassic f·1i ddl e Early 225 million Permian Late Eat·ly 280 million Late Pennsylvanian f·li ddl e Carboniferous Early jt·1i ssi ss i ppi an I Late Early 345 mi 11 ion Late Devonian f.1iddle Paleozoic Early 395 million Late Silurian Middle Early . -11 35 mi 11 ion Late Ordovician Middle Early 500 million Late Cambrian t·1i ddl e . Early 570 million I Pre Cambrian 3 ,600+ mi 11 ion Modified after Putnam (1971). B-19 GEOLOGIC HAZARDS Geologic Hazards refer to the potential of natural phenomena affecting the present state of any or all earth structures. \ GEOLOGIC HAZARDS I: This class identifies geologic ha~ards determined using collateral maps, drawn at a scale of 1:63,360, supplied by Kenneson G. Dean and J. Page Spencer of the Geophysical Institute, University of Alaska. 00 = No Geologic Hazard: An area that has no potential of any geologic hazard listed in this Geologic Hazards I section. 01 = Primary Potential Flood Zone: The active flood plain portion of a valley which is subject to periodic (often annual) flooding, standing surface water, and development of aufeis (sheets of ice formed by winter flooding caused by blockage of channel by freezing). 02 Secondary Potential Floo~ Zone: An abandoned flood plain which is subject to occassional flooding and standing surface water. 03 Outburst Flood Zone: An area subject to sudden (often annual) release of meltwater from a glacier, glacier dammed lakes, or ice and/or debris dammed streams, sometimes resulting in catastrophic floods. 04 Catastrophic Wave Zone:· An area subject to large gravitational sea waves produced by a large scale, short duration disturbance by shallow, submarine earthquakes, submarine earth movement, subsidence, volcanic eruption, or any large scale displacement of water by mass movement of rock and soil material. B-20 OS Landslide Zone: An area directly affected by the rapid downslope transport by means of gravitational stresses of soil and rock material in mass. 06 = Undulating Terrain With Varying Particle Size: An area of very undulating terrain with particle size ranging from clay to boulders. This area is usually associated with glacial moraine deposits, which are characterized by poor slope stability and intermittent poor drainage. 07 = Unstable Ground: Areas of general intense sheetwash, falling rocks, debris flows and associated deposits. These areas are mainly confined to the mountainous areas and show areas of poor slope stability. 08 = Avalanche Track: The central channel-like corridor along which avalanche debris travels. 09 = Glacier 14 = Primary Potential Flood Zone and Catastrophic Wave Zone: The active floodplain portion of a valley which is subject not only to periodic (often annual) flooding, standing surface water, and development of aufeis (sheets of ice formed by winter flooding caused by blockage of channel by freezing), but also subject to large gravitational sea waves produced by a large gravitational sea waves produced by a large scale, short duration disturbance by shallow, submarine earthquakes, submarine earth movement, subsidence, volcanic eruption, or any large scale displacement of water by mass movement of rock and soil materials. 24 Secondary Potential Flood Zone and Catastrophic Wave Zone: An abandoned floodplain which is subject not only to occassional flooding and standing surface water, but also subject to large gravitational sea B-21 waves produced by a large scale, short duration disturbance by shallow, submarine earthquakes, submarine earth movement, subsidence, volcanic eruption, or any large scale displacement of water by mass movement of rock and soil material. 99 = Water GEOLOGIC HAZARDS II No Data for Beluga Subbasin This class identifies geologic hazards using collateral maps dra\ffi at a scale of 1:250,000. There is a brief glossary of terms at the end of this section to aid in.the understanding of some of the code descriptions. 0 = No Data 1 Liquefaction, Slumps, Fissures, or Compaction: Area that is mostly underlaying by layers of silty wind laid deposits, or loess, that contain large quanitities of volcanic ·ash. Certain valley areas are subject to these hazards. The lower valley areas and coastal areas also have high water tables. When there is an earthquake in the area, there is a danger that the saturated silt and volcanic ash layer will liquify, increasing the probability of landslides, earth flows and slumps. Fissures and compactions can result in the wet valley areas when the glacial sediment begins to dry and its volume decreases. This can result in ground fissure and compaction. 2 Known or High Potential for Landslides: An area where landslide~ have or most likely will occur determined by landslide history and/or coinciding area information. B-22 3 Liquefaction, Slumps, Fissures or Compaction/Know or High Potential for Landslides. An area that has the structure of code 1 & 2. 9 = No Geologic Hazards: An area that has no potential of any geologic hazards listed in this Geologic Hazards II section. TERMS Liquefaction -The transformation of a granular material from a solid into a liquified form, under conditions of increased water flow through silt or volcanic ash, as a result of the earth's movement. Slump -Material that has slid down from high rock slopes. Fissures -An extensive crack, break, or fracture in soil or bedrock associated with compaction. Compaction -Decrease in volume of sediments due to compressive stress, usually resulting from continued deposition above but also from drying and other causes. Landslides -The perceptible downward sliding or falling of a relatively dry mass of earth, rock, or mixture of the two. SOILS Refer to Appendix A for code listings. Soils are mapped by series and phase. K~BITATS No Data for Upper Talkeetna and Beluga Subbasins Habitat is the region or environment where a plant or animal is normally found. The following is a list of coded animals divided into resourse types (See Appendix A for code structure). B-23 WILDLIFE RESOURCE TYPES Mammals Carnivores A Black Bear (Ursus americanus) B Grizzly Bear (Ursus arctos) Ki Marten (Martes americana)· Hoofed Mammals C Moose (Alces alces) D Caribou (Rangifer tarandus granti) Gi Dall Sheep (Ovis dali) Gii 'tvlountain Goat (Oreamnos americanus) Rodents Ni Beaver (Castor canadensis) Oi Hoary Marmot (Marmota caligata) Birds - Upland Gamebirds Siii White~tailed Grouse (Pediocetes phasianellus) Water Fowl Seabirds Vi Gull spp. (Laurus spp.) B-24 WILDLIFE HABITAT USAGE: This section defines what habitat activities animals experience and where and when they experience them. A. Season This defines areas where certain animals are found in a specific season. 1. Spring & Summer 2. Fall 3. Winter B. Use Activity LAND USE This section defines what animal activities occur and where. 4. Calving Where the births of the specific coded animals occur. 5. Feeding -lfuere the animals feed. 6. Migration -Where each animal migrates. 7. Nesting/Molting molt. Where species of.fowl make their nests and 8. Stagging -Where specific animals are known to breed. Land use refers to the human activities occurring on the land. Agriculture Consists of any nonurban area which exhibits a ground cover that has been altered in a regular or orderly pattern suggestive of forming. This includes both field and structure patterns typical of farm operations. 0110 = Pasture: All areas which exhibit signs of grazing (sparse or improved vegetation cover) with fence lines, evidence of cultivation and animal paths. It does not include open range or dairy and horse farming B-25 0120 facilities with evidence of intensive use such as ramadas, waste ~.;rater ponds, race tracks or milking barns. Grain, Grass: All areas used for the production of field crops ;.: J excluding vegetables. Fallow fields are included here although no knowledge of length of fallow time is available. 0130 = Vegetables: Land used for the production of vegetables. 0140 = Dairy: All areas used for the intensive raising of dairy cattle. Characteristic features include ramadas, waste water ponds, haystacks, milk barns, and holding lots. 0150 -Other Agriculture: Equipment storage facilities, ~.;rater retention facilities where farm oriented, and other special use facilities. Residential Consists of transient and nontransient home and family living space. This classification includes structures, lawn area, driveways, swimming pools, and street patterns typical of residential development. 0210 = Dispersed Residential: One dwelling per 5 acres and larger. This class includes permanent and recreational residences on tracts of land over 5 acres. The classification is mainly used for identifying isolated cabins. 0220 =Low Density: One dwelling per 2 1/2 to 5 acre lots. This class includes rural residential development on lots of 2 1/2 to 5 acres. It also includer residential housing "clusters" where houses front roads at intervals of at least one house per 2 1/2 to 5 acres. B-26 0230 Medium Density: One dwelling per 1/2 to 2 1/2 acres. This class includes rural and suburban residential development on lots of 1/2 to 2 1/2 acres. 0240 = High Density: One dwelling on less than 1/2 acre. This includes typical urban housing patterns and multi-family facilities. Multi-family is taken to mean there is more than one unit of a residential nature within the design of the structure. 0250 =Commercial (Hotel, Motel or Lodge): All commercial residential structures, including parking lots, driveways, swimming pools, and lawn areas. Commercial This includes activities which provide goods of all types to the consumer or which function to redistribute goods, but which do not alter them in handling except to repackage or complete their assemblage. 0310 = Eating and Drinking Establishment: Commercial establishments such as restaurants and bars, which provide prepared food and beverages for immediate consumption. 0320 0330 0340 0350 Food: Grocery stores and th~ir associated parking facilities. General Merchandise: Commercial establishments which sell general merchandise, such as department stores, and their parking facilities. Apparel and Accessories: Commercial establishments which sell apparel and accessories and their parking facilities. Furniture or Home Furnishings and Equipment: Commercial establishment which sell furniture, home furnishings, and equipment and their parking facilities. B-27 0360 Building Materials, Hardware, or Farm Equipment: Commercial establishments which sell building materials, hardware, or farm equipment and their parking facilities. 0370 = Auto Dealers or Gasoline Service Stations: Auto dealers, gasoline service stations, and auto repair businesses and their parking facilities. 0380 = Other: All other types of commercial establishments not covered in the previous commercial descriptions. Manufacturing Consists of all industrial and processing facilities. An activity must perform some change in the nature or form of materials to be included in this class. ~~nufacturing parks include associated warehouses, storage yards, research laboratories, and parking facilities. 0410 0420 Food: Manufacturing facilities which process food products. Lumber or Wood Products: Facilities which manufacture lumber or wood products. 0430 = Gravel or Cement Products: Manufacturing facilities ~vhich produce 0440 gravel or cement products. Other: All other types of light and heavy industry and processing facilities. Services Consists of commercial areas (building and parking facilities) used predominantly for the sale of services. 0510 =Miscellaneous Business Services: Establishments engaged in the purchase or sale of commodities or in related financial transactions. B-28 0520 = Personal: Businesses which provide some personal service, such as beauty shops, dance studios. 0530 = Professional: Businesses which provide professional services, such as lawyers, accountants, etc. 0540 = Finance, Construction or Real Estate: Finance, construction, and real estate businesses. 0550 = Repair: Businesses that offer repair services, such as appliance repair, clock repair, etc. 0560 = Other: All other types of services not covered in the previous service descriptions. Public/Quasi -Public Services Consist of government buildings, hospitals, schools, churches, fairgrounds and other public group facilities. 0610 = Military: All developed lands controlled by a branch of the United States Armed Forces. 0620 = Governmental Institution: All civil offices, jails, post offices, city halls, county administrative facilities, courts and libraries. 0630 = Educational Institutions: All public and private schools and school administration buildings. 0640 0650 Health Institution: Public and private hospitals, clinics, psychiatric faclities and sanitariums that give both custodial and short term care. Church or Community Center: Churchs, mosques, temples, tabernacles aad other places of worship or religious pursuit. Religious retreats, monasteries, convents, etc. are included. Not included are B-29 0660 educational facilities which offer other than religious training, i.e., church owned colleges and universitys. Also within this class are community centers. Cemetary: Public and private cemeteries, memorial parks, and mausoleums. This class also includes all facilities associated with the cemetery, such as chapel or gardens. 0670 = Solid Waste Disposal Site: Abandoned, currently active, and proposed dumps and sanitary landfill operations. 0680 = Other: Amphitheaters and other public facilities not included above. Communication Facility 0700 = Communication Facility, Undifferentiated: Radio, television, and telephone cocrmunication facilities, including broadcast towers and associated buildings. Transportation Facilities Consists of airports and marine facilities. 0810 = Airport: An airport is a tract of land or water that is maintained for the landing and takeoff of airplanes and for the receiving and discharging of passengers and cargo. It also includes facilities for the shelter, supply, and repair of aircraft. 0811 Public Access: Airport open for public use. 0812 = Private Access: Airport restricted to private access. 0820 = Marine, Port or Dock Facility: All port, dock, and storage facilities for the commercial and pleasure boats. Also included are ship repair facilities and dredger operations. B-30 Utility Consists of telephone, electric and domestic water facilities. 0900 = Utilities, Undifferentiated: Areas which are owned or operated by a major utility, such as utility equipment repair yards and storage areas. Resource Extraction Consists of extraction area for·mining of sand and gravel, minerals, gas, and oil. It also includes logging areas. 1020 = Sand/Gravel Quarry and Borrow Pit: Excavated areas where sand and gravel has been extracted for use as fill and as a building material. 1030 = Surface Mining:· Strip mining operations and quarries. 1040 = Gas Well Fields: Areas used for the extraction of gas. This class includes gas storage tanks and any associated structures. 1041 Inactive: Gas fields not currently in production. 1042 = Active: Gas fields currently in production. 1050 = Oil Well Fields: Areas used for the extraction of oil. This class also includes oil storage tanks and any associated structures. 1051 = Inactive: Oil fields not currently in production. 1052 Active: Oil fields currently in production. 1060 = Timber: Areas used for intensive logging. 1070 = Mineral Extraction Site: Areas used for mineral extraction. Mixed Urban Build-up 1100 = Mixed Urban Build Up: Consists of those areas where individual urban uses cannot be separated at the mapping scale. The category typically includes developments along transportation routes and in cities and B-31 toi.nS where residential, commercial services, and manufacturing cannot be mapped individually because their areas are less than the minimum mapping resolution. Under Construction 1200 =Under Construction: Areas in which the basic.infrastructure exists but no structures are present. Vacant Disturbed 1300 = Vacant Disturbed: Rural areas which have had their natural vegetation cover removed but are not currently being used. Outdoor Recreation 1410 = Marine Board Launching Sites 1420 = Public Park, Campground, Refuge 1430 Private Resort, Park, Group Camp Recreation 1510 = Bird Hatching 1520 = Bird Watching/Mountaineering 1530 Mountaineering 1540 Lake Boating/Lake Canoeing 1550 = Lake Boating/Lake Canoeing/Lake Fishing 1551 = Lake Boating/Lake Canoeing and Intensive Fishing 1552 = Lake Boating/Lake Canoeing and Moderate Fishing 1553 = Lake Boating/Lake Canoeing and Light Fishing 1554 Lake Boating/Lake Canoeing and Very Light Fishing 1560 = Lake Fishing 1561 = Intensive Fishing B-32 1562 Moderate Fishing 1563 = Light Fishing 1564 Very Light Fishing Natural Lands, Undifferentiated 1600 = Natural Lands, Undifferentiated: Consists of all natural areas which have no land use. Natural lands also include all waterbodies. VEGETATION Primary Vegetation Secondary Vegetation Tertiary Vegetation Quaternary Vegetation Wherever possible, pure strands of any vegetation type were delineated as polygons .and given the appropriate primary vegetation code. However, many vegetation types can occur in stands of less than five acres, the minimum mapping resolution, and are therefore too small to be mapped as discrete polygons. If only the primary vegetation type was mapped, polygons less tha~ 5 aces would be ignored. This vegetation classification deals with these small vegetation stands by identifying not just a polygon's primary vegetation, but also the secondary, tertiary, and quaternary vegetation. The dominant vegetation type is coded as the primary vegetation, and any additional vegetation types which occur within the polygon are coded secondary, tertiary or quarternary vegetation. Forest -Woodland Forest: Forest land is land with more than 50% of the area having tree crown cover or formerly having SO% cover. B-33 21 = Coniferous Fares t, ~-/hi te Spruce, Short Stands, Closed Forest: Hain canopy usually less than 30 ft. in height, usually found at higher elevations as isolated pockets in area dominated by alder, grassland, or open mixed stands. 22 = Deciduous Forest, Mixed Forest, Young Stands, Closed Forest: Canopy is usually very finely textured as seen from above, openings in stand are very rare. Composed mostly of birch and/or aspen. This type very rarely mixed with other types except when found as a remnant condition in burned areas. Spruce is not usually evident as a component of the overstory in these young stands. 0-40 years old. 24 = Deciduous Forest, Mixed Forest, Medium-Aged Stands, Closed Forest: Canopy is usually fine textured as seen from above, openings may be fairly common but they are usually small. Elements of this ty·pe include birch, spruce and aspen. Birch is usually found as a main component of this type but percent composition may vary greatly depending on a number of factors, e.g., as the type increases in age,. the percentage of white spruce as a crown component usually increases along with the amount of understory and number of stand openings. 40-100 years age. 25 = Coniferous Forest, White Spruce, Tall Stands, Closed Forest: Main canopy usually greater than 30 ft. in height, usually found at lower elevations on better sites, almost always found mixed with old and decadent deciduous trees (very rare~v found as a pure type in Susitna Valley). 26 Deciduous Forest, Mixed Forest, Old Stands, Closed Forest: Canopy is usually somewhat coarse textured as seen from above, openings are B-34 usually common and may cover close to half of the stand area. Canopy may also appear smooth, but openings appear as definite holes in the crown. Deciduous t;:ees in these old stands are usually decadent. Spruce is usually becoming the dominant species. The understory component of the stand is usually visible from above and includes Calamagrostics and Alnus as its most common species. These stands are always greater than 100 years old. 27 Cottonwood, Young Stands, Closed Forest: Most commonly found on new islands, downstream ends of old islands, and point bars of rivers. Cottonwood or poplar is usually found mixed with large alder and/or willow-(understory is sparse to nonexistent). 0-40 years old. 28 = Cottonwood, Medium-Aged Stands, Closed Forest: Most commonly found in a riverine situation or within at least one mile of a river (alluvial soils). Stands are usually pure cottonwood or poplar, spacing is even I % and crown closure approaches 100 •• Understory in the Susitna Valley is dominated by alder and devil's club. 40-100 years old. 29 = Cottonwood, Old Stands, Closed Forest: Most commonly found in riverine influence (alluvial soils). Stands may be mixed with young white spruce. Cottonwood are extremely large (30-40 inches in diameter) and decadent (larger trees may be only shells). Stand appears somewhat clumpy due to openings appearing in stand. Understory includes large quantities of alder, devil's club and willow. Greater than 100 years old. Open Forest -Woodland A forest or woodland area with 10% -50% crown cover. B-35 31 = Coniferous Forest, White Spruce, Short Stands, ~voodland: Usually found at higher elevations as a transition type between closed forest and high elevation nonforest areas. Usually found mixed with elements of the higher elevation type, i.e., if the higher elevation type is a mixture of alder and grass then the open white spruce transition type will normally be forming a complex type with alder and grass. 30 feet tall. 32 = Deciduous Forest, Mixed Forest, Medium-Aged Stands, Woodland: Although birch/aspen stands are not usually found as a transition type between forest and high elevation nonforest areas, they are often found just below areas of type 31. 40 years old. 33 = Coniferous Forest, White Spruce, Tall Stands, Woodland: Same as type 31 except normally found at lower elevations or on better sites. Commonly found in creek bottoms mixed with alder/willow and grass. 30 ft. tall. 34 Deciduous Forest, Mixed Forest, Old Stands, Woodland: Found in same general location as type 33. Found in association with grass and alder. Birch, in this type, is usually found growing in very small, tight clumps. Spruce are usually found to have an open grown form and are normally much younger than the hard~·10od component of the type. 35 Cottonwood, Medium-Aged Stands, Woodland: Usually found at treeline just above elevational limit of open white spruce. Found in pockets a~ong low shrubs. 36 Cottonwood Old Stands, Woodland: Two elevational phases of this type seem to occur. The high elevation phase, consisting of balsam poplar, may be found mixed with streamside alder/willow along flowing water on high elevation flats. The low elevation phase, consisting of B-36 cottonwood, may be found on major river flood plains growing with a confusing mixture of other types including open spruce, open birch, alder, grass, etc. Closed Forest (Black Spruce Mountain Hemlock) A forest area having a greater than or equal to 50% crown cover composed of black spruce or mountain hemlock. 41 = Black Spruce, Short Stands, Closed Forest: Main canopy usually less than 30 ft. in height, generally found on wet and/or cold (poor) sites, may be found mixed with birch of poor quality but usually found as a pure type forming islands and stringers in bog areas or transition zones between bog area and forest areas. Understory is usually a thick moss and/or sedge mat. 42 Black Spruce, Tall Stands, Closed Forest: Main canopy usually greater than 30 ft. in ht. Can usually be identified as a fire formed stand, on relatively good sites, stands are remarkably pure and the stocking density is usually quite high. May be found mixed with very scattered birch. 45 Mountain Hemlock, Short Stands, Closed Forest: Main canopy less than 30 ft. Geographically limited in Susitna Valley to higher ground west of Tyonek, found as stringers mixed with other local types. 46 Mountain Hemlock, Tall Stands, Closed Forest: Main cano~y greater than 30 ft. Geographically limited in Susitna Valley to low'ground west of Tyonek, found as stringer stands mixed with other local types. Open Forest -Woodland (Black Spruce) Includes black spruce stands with 10% to 50% crown cover. B-37 43 = Black Spruce, Short Stands, Open Forest-Woodland: Found in association with bog types. Black spruce are usually of very poor form. Site is either wet or cold or both-trees usually less thag,l5 ft. in height. Non Forested Non forested land is land with less than 10% of the area having tree crown cover. Salt Water Wetlands Salt water wetlands are areas with moist soil and high saline levels. 50 = Salt Grassland: Elymus dominated grassland in areas of tidal influence. Usually found at edge of normal high water in sandy soil. Normally this type is found in areas where the shoreline .gradient is relatively steep, usually found as a belt of grass along the shore. 51 Low shrub: Myrica dominated shrubland located on tidal flats. Water level is usually fluctuating seasonally. In areas that are more continuously wet, sedge replaces Myrica. 52= Tidal Marsh: Usually found in areas with many shallow lakes and'little topographic relief (within tidal influence). Vegetation is dominated by various sedges. Woody plants may occur on the drier sedge and peat ridges that are common to this type. Tall Shrubs Taller stands of a several stemmed woody plant composed of the following vegetation types: 60 = Alder: This type is dominated by tall (10-15 ft.) alder growing in dense thickets with grasses, ferns, and a great variety of forbs growing in the understory. Devil's club can be found as a dominant understory B-38 to the alder on wetter and steeper sites. Devil's club will normally exclude other understory vegetation. The type is found at or above treeline. At treeline it is often found mixed with open white spruce and cottonwood types. 61 Alder-Willow: This type is dominated by a mixture of very large alder and willow. This type is normally found on frequently flooded ground such as new islands, point bars, etc. Understory is sparse but may include· Equisetur and Calamogrostis. This type is often found mixed with young open cottonwood (in younger stands the cottonwood is almost indistinguisable from the willow and alder). Low Shrub A low, several stemmed woody plant composed of the following vegetation types: 62 = Willow Resin Birch: This type is dominated by either willow or resin birch or a combination thereof. The type is often found in sheltered situations at high elevations, e.g., draws in mountainous terrain. This type is found at and above the transition between tall shrubland and tundra. Grassland Land in which grasses are the predominant vegetation. 63 Upland Grass: This type is dominated by Calamagrostics 1 to 2 meters tall. Fireweed and various ferns are sometimes common. This type is most often found as an understory in the more open forest types and B-39 woodland areas where it is commonly associated with alder patches. This type can also be found unassociated with other types along small streams. Tundra An area where the mean monthly temperature is below freezing. In the summer, only mosses, lichens and some flowering plants appear, while the cold of tvinter make normal t'ree growth impossible, allowing only stunted willows, birches, etc. 64 = Sedge-Grass: This type is found above treeline on relatively flat, wet areas. Vegetation consists almost entirely of various wet sedges: 65 = Herbaceous~ This type is found above treeline and is almost always found mixed \vith and above shrub tundra. The variety of species found in this type is immense, consisting mainly of various grasses and forbs. Soil varies in depth and may be intermixed with rock outcroppings. Vegetation may not be continuous. 66 Shrub: This type is dominated by dwarf arctic birch and other shrubs along with various short grasses and a large number of £orbs. This type is almost always found mixed with and below herbacious tundra. Density of the shrubs found in this type varies considerably and may often appear quite patchy. 67 Mat and Cushion: This type is dominated by such plants as dryas, crowberry, bearberry, sedge, grass, lichen and other rooted forbs. B-40 Climatic conditions are extreme at the elevation where this type is found. Vegetation cover may be complete (closed mat cushion) or relatively sparse (scattered mat cushion) with a large percentage of the vegetation being lichen. This type is often mixed with rock. Freshwater Wetlands An area of moist soil saturated with freshwater and containing the following vegetation: 68 = Sphagnum Bog: Cover is dominated by varying amounts of sedge, equisetum, and moss (especially sphagnum). This type is usually found as a floating mat over several feet of water or as a thick mat directly over saturated or frozen soil. Shrubs and stunted trees (if present) may be found on drier peat ridges. This type is similar to tidal marsh except that shallow lakes are less common, the peat ridges form a more continuous and regular patterns and the type is found inland beyond tidal reach. Usually found as a pure type. 69 = Sphagnum-Shrub Bog: Vegetation of this type is dominated by a thick moss mat (sphagnum) and/or sedge tussocks. Grass, ericaceous shrubs, salix, blueberry and cranberry may also be present. Ground water level usually varies seasonally but this type is generally not as wet as sphagnum bog. This type is usually mixed with open stands of short black spruce. Many other types may also be found in close association with sphagnum shrub bog. The associated types are typically found on glacial moraines and eskers within the bog area. Cultural Features Man related features associated with the following: B-41 70 Cultural Influences: May be broadly defined as land that has been obviously affected by human activity. Includes agricultural land, urban areas, and land developed to support or provide services to agricultural and urban land. This "type" may indeed be vegetated but vegetation that is present may not be natural in either composition or spacing. Barren Largely unvegetated tracts of land. 80 = Mud Flats: Confined to tidal areas (Cook Inlet) and the mouths of major rivers (Susitna, Knik). This "type" may appear vegetated on C.I.R. and color photography or from the air; however, the "vegetation" is usually algal blooms and/or other sea plants. Mud flats are usually well patterned with ripple mark3 or water drainage patterns. They are normally submersed during high tide. They may be used as resting and fe~ding areas by waterfowl. 81 Rock: Exposed bedrock and scree commonly found along with mat cushion tundra at high elevations. This "type'' is also used to describe large landslide areas, some morainal features, and other natural barren areas. Permanent Snow and Ice An area where snow and ice is present throughout the year. 82 = Snowfield: High elevation snow accumulation areas. Appears to be a permanent or nearly year round part of the landscape. May be found as small pockets on slopes protected from the sun, on lee 1lopes or in gulleys. Usually found over bare ground. May also be found as large snow accumulation areas at very high elevations. Often mixed with mat-cushion tundra and. rock. B-42 83 Glacier: Includes both icefields and glaciers. Usually found covering several square miles. Considered a permanent part of landscape. To differentiate 83 from 82 note 83 covers much larger areas; crevasses, moraines and other glacial features are usually present. \Jater Areas consisting of the following water bodies: 91 = Lakes greater than 40 ac. (census tV"ater) 92 =Lakes at least 10 ac., but less than 40 ac. 96 Streams and rivers at least 165 feet wide, but less than 600 feet wide 97 = Rivers greater than 1/8 mile (census water) B-43 STREA.c'1 MANUSCRIPT lf2 SURFACE HYDROLOGY DATA CODE DESCRIPTIONS A general term for water flowing in one direction such as a rill, rivulet, brook, creek, and river. Order Stream order is the delineation of streams according to their hierarchical position within a drainage network. The smallest streams which have no tributaries are called first order streams. A second order stream is formed by the joining of two first order streams. \fuen. two second orde;- streams flow together a third order stream is created and so on• A lower order tributary flowing into a higher ordered stream does not change the order of the larger stream. Periodicity All streams within the study areas were perennial, meaning they flow throughout the year. 1 = Intermittent: Stream which flow discontinuously throughout the year. These stream usually exhibit seasonal flows or flow after it rains. 2 = Perennial: Streams which flow continuously year round. Origin The origin of a stream identifies whether or not that stream originates directly from glacial meltwater. 1 = Non-glacial: Non-glacial streams are formed as a result of surface run off and subsurface seepage. B-44 2 Glacial: Streams which originate directly from glacial meltwater are glacial streams. Discharge Profile Discharge profile distinguishes streams which form in the mountains from streams which form in the valleys or lowland areas. 1 = Lowland Streams: The headwater of a lowland stream originates below 1500 feet, the approximate timberline. 2 = Mountain Streams: A mountain stream's headwaters originate above 1500 feet, the approximate timberline. Situation Situation indicates which line segments are drawn through polygons coded as waterbody on the ITUM, and which are not. (Enables water polygons and water line information to be plotted on the same map properly.) l = Not within Waterbody: Indicates stream segments which are not contained in ITUM waterbody polygons. 2 Within Waterbody: Indicates stream segments which are contained in ITUM waterbody polygons. Condition Streams which are fed by glacial meltwater must transport excessive amounts of glacial sediment. The resulting braid channel is the most efficient form for transporting large amounts of sediment. Braided streams are made up of shifting, intertwining, shallow channels which are separated by sand and gravel deposits. l Non Braided: A stream which does not exhibit a braided channel. 2 = Braided: A stream which has a braided channel configuration. B-45 SALMON TYPE (Columns 7-11) Talkeetna Subbasin No Data for Lower Talkeetna Subbasin 0 or 1 = 2 = 3 = 4 King Salmon (Column 7) Sockeye Salmon (Column 8) Coho Salmon (Column 9) Pink Salmon (Column 10) Chum Salmon (Column 11) Blank: No Data Salmon Not Present Salmon Present, But Not Spawning Salmon Present, Discontinuous Spawning Salmon Present, Known Spawning Area NON-SALMON FRESHWATER FISH TYPE (Column 13-16) No Data for Lower Talkeetna Subbasin Dolly Varden (Column 13) Arctic Char (Column 14) Rainbow Trout (Column 15) Whitefish (Column 16) 0 or Blank = No Data 1 Not Present 2 = Present SALHON TYPE (Columns 7-11) Beluga Subbasin 0 1 = 2 3 = 4 = King Salmon (Column 7) Sockeye Salmon (Column 8) Coho Salmon (Column 9) Pink Salmon (Column 10) Chum Salmon (Column 11) No Data Salmon Not Present Salmon Present, But Not Spawning Salmon Present, Discontinuous Spawning Salmon Present, Known Spawning Area NON-SALMON FR~SHWATER FISH TYPE (Columns 12-15) Dolly Varden (Column 12) Arctic Char (Column 13) Raip.bow Trout (Column 14) Whitefish (Column 15) B-46 0 = No Data 1 Not Present 2 = Present 1-lATERSHED -Talkeetna Subbasin Topologic Number (Columns 1-7) 8th Order or Higher (Column 7th Order (Column 2) 6th Order (Column 3) 5th Order (Column 4) 4th Order (Column 5) 3rd Order (Columns 6 and 7) 1) I. 8th order or higher watershed basins A. 1000000 = All basins draining into the 8th order Susitna River receive a 1 in column 1 B. 2000000 = All basins draining into the Cook Inlet c. 3000000 = Special watershed draining both directions; Susitna and the Cook Inlet. II. 7th order basins comprising Susitna River 8th A. 1100000 = Susitna River 7th B. 1200000 = Yentna River 7th III. 6th order basins A. 6th order basins comprising Susitna River 7th 1. 1110000 = Kroto Creek 6th 2. 1120000 = Susitna River 6th B. 6th order basins comprising Yentna River 7th Yentna 6th 1. 2. 1210000 1220000 = Skwentna 6th IV. 5th order basins A. 5th order basins comprising Kroto Creek 6th 1. 2. 1111000 1112000 = Kroto Creek 5th Moose Creek 5th B-47 into the B. 5th order basins comprising Susitna River 6th 1. 2. 3. 1121000 112ZOOO = 1123000 Chulitna Creek 5th Susitna River 5th Talkeetna River 5th C. 5th order basins draining directly into Yentna 7th 1. 1201000 = Kahiltna River 5th 2. 120ZOOO = Lake Creek 5th D. 5th order basin draining directly into Susitna 8th 1. 1001000 = Alexander Creek 5th E. 5th order basins within Skwentna River 6th 1. 1221000 = Talachu1itna River 5th V. 4th order basins A. 4th order basins comprising Kroto Creek 5th 1. 1111100 = Kroto Creek 4th 2. 1111200 = Unnamed 4th B. 4th order basins comprising Moose Creek 5th 1. 1112100 = Moose Creek 4th 2. 1112ZOO =Nine Mile Creek 4th C. 4th order basins within Susitna River 5th 1. 1121100 = Tokositna River 4th D. 4th order basins within Talkeetna 5th 1. 2. 3. 1123100 1123ZOO 1123300 = Chunilna Creek 4th Talkeetna River 4th = Sheep River 4th E. 4th order basins comprising Kahiltna 5th 1. 1201100 = Unnamed 4th 2. 1201200 = Kahiltna 4th 3. 1202300 = Peters Creek 4th F. 4th order basins draining directly into Susitna 6th 1. 1120100 = Kashwitna River 4th B-48 2. 1120200 = Hontana Creek 4th 3. 1120300 = Unnamed 4th G. 4th order basins draining directly into Yentna 7th 1. 1200100 = Fish Lake Creek H. 4th order basins within Lake Creek 5th 1. 1202100 = Camp Creek 4th 2. 1202200 = Lake Creek 4th I. 4th order streams draining directly into Skwentna 6th 1. 1220!00 =Eight Mile Creek J. 4th order streams comprising Alexander Creek 5th 1. 1001100 = Wolverine/Lower Sucker Creeks 2. 1001200 = Alexander Creek VI. Third order basins A. 3rd order basins comprising Kroto Creek 4th 1. 1111101 = Unnamed 3rd order 2. 1111102 = Kroto Creek 3rd 3. 1111103 = Seventeen Mile Creek 3rd B. 3rd order draining directly into Kroto Creek 5th 1. 1111001 = Unnamed 3rd C. 3rd order draining directly into Kroto Creek 5th 1. 1111201 = Unnamed 3rd 2. 1111202 = Unnamed 3rd D. 3rd order basins comprising Xoose Creek 4th 1. 1112101 = Unnamed 3rd 2. 111210:2 = West Fork Hoose Creek 3rd 3. 1112103 = Hoose Creek 3rd E. 3rd order basins comprising Nine Mile Creek 4th 1. 1112201 =Unnamed 3rd 2. 1112202 = Nine Mile Creek 3rd B-49 F. 3rd order basins comprising unnamed 4th 1. 1201101 = Unnamed 3rd 2. 1201102 = Unnamed 3rd G. 3rd order basins comprising Kahiltna 4th 1. 1201201 = Unnamed 3rd 2. 1201202 = Bear Creek 3. 1201203 = Unnamed 3rd 4. 1201204 = Hungry Man Creek 5. 1201205 = Cache Creek 3rd 6. 1201206 = Treasure Creek 3rd 7. 1201207 = Dutch Creek 3rd 8. 1201208 = Granite Creek 3rd H. 3rd order bas~n in Peters Creek 4th 1. 1201301 = Martin Creek 3rd 2. 1201302 = Kenny Creek 3rd 3. 120130:3 = Peters Creek 3rd I. 3rd order basins within Camp Creek 4th 1. 1202101 = Mills Creek 3rd 2. 1202102 = Camp Creek 3rd J. 3rd order basins within Lake Creek 4th 1. 1202201 = Sunflower Creek 3rd 2. 1202202 = Lake Creek 3rd K. 3rd order basins craining directly into Kahiltna 5th 1. 1201001 = Indian Creek 3rd - 2. 1201002 = Unnamed 3rd L. 3rd order basins comprising unnamed 4th 1. 1120301 = Rabideux Creek 2. 1120302 = Queer Creek }[. 3rd order basins draining directly into Susitna River 6th 1. 1120001 = Caswell Creek 2. 1120002 = Sheep Creek 3. 1120003 = Sunshine Question Creek 4. 1120004 = Birch Creek 5. 1120005 = Trapper Creek B-50 N. 3rd order draining into Talkeetna 5th 1. 1123001 = Wiggle Creek 2. 1123002 =Unnamed 3rd 0. 3rd order basins comprising Eight Mile Creek 4th 1. 1220101 = Unnamed 3rd 2. 1220102 =Unnamed 3rd P. 3rd orders draining directly into Ynetna River 7th 1. 1200001 = Unnamed 3rd 2. 1200002 = Moose Creek 3rd 3. 1200003 = Indian Creek 3rd Q. 3rd order basins comprising Alexander Creek 4th 1. 1001201 = Bear Creek 2. 1001202 = Clear Creek 3. 1001203 = Deep Creek 4. 1001204 = Unnamed R. 3rd order basins within Wolverine/Lower Sucker 1. 1001101 = Unnamed 3rd 2. 1001102 = Wolverine Creek 3rd S. 3rd order basins drai~ing directly into Alexander Creek 5th 1. 1001001 = Trail Creek T. 3rd order basins draining directly into Susitna 7th 1. 1100001 = Fish Creek 2. 1100002 = Unnamed 3rd u. 3rd order basins draining directly into Susitna 8th r. 1000001 = Unnamed 3rd V. 3rd order basins draining directly into Cook Inlet 1. 2000001 = Theodore River 2. 2000002 = Lewis River i,. 3rd order basin that drains into Talachulitna 4th (out of study area), then Skwentna 6th 1. 1221201 = Talachulitna 3rd B-51 x. 3rd order basins draining directly into Kroto Creek 6th 1. 1110001 = Unnamed 3rd 2. 1110002 = Unnamed 3rd 3. 1110003 = Unnamed 3rd Y. 3rd order basins draining directly into Lake Creek 5th 1. 1202001 = Yenlo Creek 3rd 2. 1202002 = Unnamed 3rd 3. 1202003 = Unnamed 3rd 4. 1202004 = Home Creek 3rd Z. 3rd order basins draining directly into Yentna 6th 1. 1210001 = Hewitt Creek 3rd 2~ 1210002 = Donkey Creek 3rd AA. 3rd order basins comprising Fish Lake 4th 1. 1200101 = Unnamed BB. 3rd order basins comprising Nontana Creek 4th 1. 1120202 = Unnamed 3rd 2. 1120203 = North Fork 3rd 3. 1120204 = Middle Fork 3rd 4. 1120205 = South Fork 3rd CC. 3rd order basins within Kashwitna River 4th 1. 1120101 = North Fork Kashwi tna River 3rd DD. 3rd order bas.ins within Tokositna River 4th 1. 1121101 = Tokositna River 3rd 2. 1121102 = Bunco Creek 3rd 3. 1121103 =Unnamed 3rd EE. 3rd order basins draining directly into Chulitna 5th 1. 1121001 =Unnamed 3rd FF. 3rd order basins draining directly into SLsitna River 5th 1. 1122001 =Whiskers Creek 3rd GG. 3rd order basins within Talkeetna River 4th 1. 1123201 = Disappointment Creek 3rd B-52 HR. 3rd order basins within Chunilna River 4th 1. 1123101 = Unnamed 3rd 2. 1123102 = Unnamed 3rd II. 3rd order basins draining directly into Talachulitna 5th 1. 1221002 = Unnamed 3rd 2. 1221003 = Thursday Creek 3rd 3. 1221004 = Unnamed 3rd JJ. 3rd order basins draining directly into Skwentna River 6th 1. 1220001 = Shell Creek 3rd KK. 3rd order special watershed draining both directions into the Susitna River and the Cook Inlet. 1. 3000001 = Ivan River 3rd WATERSHED -BELUGA SUBBASIN Topologic Numb2r (Columns 1-7) I. 8th Order of Higher (Column 1) 7th Order ( Colu.rnn 2) 6th Order (Column 3) 5th Order (Column 4) 4th Order (Column 5) 3rd Order (Colmm 6 and 7) 8th order of higher watershed basins A. 1000000 = All basins draining into the 8th order Susitna River. B. 2000000 = All basins draining into the Cook Inlet c. 3000000 Special watershed draining both directions; into the Susitna and the Cook Inlet. D. 4000000 Special watershed draining both directions into McArthur Fiver and the Cook Inlet. II. 7th order basins comprising Susitna River 8th A. 7th order basins withi~ Susitna River 8th 1. 1200000 = Yentna River 7th B-53 III. 6th order basins A. 6th order basins comprising Susitna River 7th 1. 2. 1210000 1220000 Yentna River 6th (13) = Skwentna River 6th (33) B. 6th order basins draining directly into the Cook Inlet 1. 2010000 =Beluga River ~th (66) IV. 5th order basins A. 5th order basins within Yentna River 6th 1. 1211000 =East Fork Yentna River 5th (20) 2. 1212000 = West Fork Yentna River 5th (24) 3. 1213000 = Kichatna River 5th (26) B. 5th order basins within Sh1entna River 6th 1. 122!000 = Talachulitna River 5th (38) c.-5th order basins draining both directions into McArthur River and Cook Inlet. - 1. 4001000 = Chakachatna River 5th (94) D. 5th order basin draining directly into Yentna River 8th 1. 120l000 =Lake Creek 5th (out of study) E. 5th Order Basins Within Beluga River 6th 1. 2011000 = Beluga River 5th (78) 2. 2011200 = Coal Creek 5th (87) F. 5th order basins draining directly into the Susitna River 8th 1. 1001000 =Alexander Creek 5th (out of study area) V. 4th order basins A. 4th order basins dra5ning directly into Yentna River 6th 1. 1210100 = Johnson Creek 4th (18) B. ·4th order basins within Kichatna River 5th 1. 1213100 = Kichatna River 4th (27) 2. 1213200 =Unnamed 4th (30) B-54 C. 4th order basins draining directly into Skwentna River 6th 1. 1220200 = Hayes River 4th (36) D. 4th order basins draining directly into Cook Inlet 1. 2000300 = Chuitna River 4th (60) E. 4th order basins draining directly into Beluga River 6th 1. 2010100 = Unnamed 4th (71) 2. 2010200 = Unnamed 4th (74) F. 4th order basins within Beluga River 5th 1. 2011100 = Beluga River 4th (79) 2. 2011200 = Chichantna River 4th (83) G. 4th order basins within Chakachatna River 5th 1. 4001!00 = Straight Creek 4th (96) H. 4th order basins within Lake Creek 5th 1. 1202100 = Camp Creek 4th (out of study) I. 4th order basins within Lake Creek 5th 1. 1202!00 = Lake Creek 4th (out of study) J. 4th order basins within Coal Creek 5th 1. 2012100 = Coal Creek 4th (88) 2. 2012200 \vest Fork Coal Creek 4th (90) K. 4th order basins within Alexander Creek 5th 1. 1001100 = Wolverine/Lower Sucker Creek 4th 2. 1001200 = Alexander Creek 4th L. 4th order basins within Talachulitna River 5th 1. 1221100 Talachulitna Creek 4th (42) 2. 1221200 Talachulitna River 4th (45) 3. 122i3oo Friday Creek 4th (49) B-55 VI. 3rd order basins A. 3rd order basins draining directly into Lake Creek 5th 1. 1202004 = Home Creek 3rd (8) B. 3rd order basins within Camp Creek 4th 1. 1202101 = Mills Creek 3rd (9) 2. 1202102 = Camp Creek 3rd (10) C. 3rd order basins within Lake Creek 4th 1. 1202201 = Sunflower Creek 3rd (11) 2. 1202202 = Lake Creek 3rd (12) D. 3rd order basins drainiing directly into Yentna River 6th 1. 1210001 = Hewitt Creek 3rd (14) 2. 1210002 =Donkey Creek 3rd (15) 3. 1210003 = Unnamed 3rd (16) 4. 1210004 = Clean·ater Creek 3rd (17) E. 3rd order basins ~·li thin Johnson Creek 4th 1. 1210101 = Red Creek 3rd (19) F. 3rd order basins draining directly into East Fork Yentna River 5th 1. 1211001 =Rich Creek 3rd (21) 2. 1211002 = Unnamed 3rd (22) 3. 1211003 = Unnamed 3rd (23) G. 3rd order basins draining directly into West Fork Yentna River 5th 1. 1212001 =Unnamed 3rd (25) H. 3rd order basins within Kichatna River 4th 1. 1213101 =Unnamed 3rd (28) 2. 1213102 = Nakochna River 3rd (29) I. 3rd order basins within Unnamed 4th (1213l00) 1. 1213201 =Unnamed 3rd (31) 2. 121320:2 =Unnamed 3rd (32) B-56 J, 3rd order basins draining directly into Skwentna River 6th 1. 1220001 = Shell Creek 3rd (34) 2. 1220002 = Canyon Creek Jrd (35) K. 3rd order basins within Hayes River 4th 1. 1220201 = Unnamed 3rd (37) L. 3rd order basins draining directly into Talachulitna River 5th 1. 1221003 = Thursday Creek 3rd (39) 2. 1221004 = Unnamed 3rd (40) 3. 1221005 = Deep Creek 3rd (41) M. 3rd order basins within Talachulitna Creek 4th 1. 1221101 = Unnamed 3rd (43) 2. 1221102 = Talachulitna Creek 3rd (44) N. 3rd order basins within Talachulitna River 4th 1. 1221201 =.Talachulitna River 3rd (46) 2. 1221202 = Unnamed 3rd (47) 3. 1221203 = Unnamed 3rd (48) 0. 3rd order basins within Friday Creek 4th 1. 1221301 = Friday Creek 3rd (50) 2. 1221302 = Saturday Creek 3rd (51) 3. 1221303 = Unnamed 3rd (52) P. 3rd order basins draining directly into Cook Inlet 1. 2000001 = Theodore River 3rd (54) 2. 2000002 = Lewis River 3rd (55) 3. 2000003 = Three Mile Creek 3rd (56) 4. 2000004 = Old Tyonek Creek 3rd (57) 5. 2000005 = Nikolai Creek 3rd (58) 6. 2000006 = Chuitkinachna Creek. 3rd (59)- Q. 3rd order basins within Chuitna River 4th 1. 2. 3. 4. 5. 20003~ = Lone Creek 3rd (61) 2000302 = Unnamed 3rd (62) 2000303 = Chuit Creek 3rd (63) 2000304 = Chuitna River 3rd (64) 2000305 = Unnamed 3rd (65) R. 3rd orders basins draining directly into Beluga River 6th 1. 2010001 = Unnamed 3rd (67) 2. 2010002 = Unnamed 3rd (68) 3. 2010003 = Unnamed 3rd (69) 4. 2010004 = Pretty Creek 3rd (70) . s. 3rd order basins within unnamed 4th (2010~00) 1. 2010201 = Unnamed 3rd (75) 2. 2010202 = Unnamed 3rd (76) 3. 2010203 = Unnamed 3rd (77) T. 3rd order basins within Beluga River 4th 1. 2011101 = Unnamed 3.rd (80) 2. 2011102 = Unnamed 3rd (81) 3. 2011103 = Unnamed 3rd ( 82) u. 3rd order basins within Chichantna Rivet" 4th 1. 2011201 = Unnamed 3rd (84) 2. 2011202 = Chichantna River 3rd (85) 3. 2011203 = Unnamed 3rd (86) v. 3rd order basins within Coal Creek 4th 1. 20121Ql = Unnamed 3rd (89) iv. 3rd order basins within West Fork Coal Creek 4th 1. 2011101 = West Fork Coal Creek 3rd (91) 2. 201220z = Unnamed 3rd (92) x. 3rd order basins within unnamed 4th (2010100) 1. 2010101 = Unnamed 3rd (72) 2. 2010102::: Unnamed 3L'd (73) Y. 3rd order basins within Wolverine/Lower Sucker Creek 4th 1. 1001102 = Wolverine Creek 3rd (4) B -58 z. 3rd order basins within Alexander Creek 4th 1. 1001201 = Bear Creek 3rd (5) 2. 1001202 = Clear Creek 3rd (6) 3. 1001203 =Deep Creek 3rd (7) ~~. 3rd order basins draining directly into Alexander Creek 5th 1. 1001001 = Trail Creek 3rd (3) BB. 3rd order basins draining directly into Susitna River 8th 1. 1000001 = Unnamed 3rd (2) CC. 3rd order basins both directions into Susitna River and Cook Inlet 1. 3000001 = Ivan River 3rd (93) DD. 3rd order basins draining directly into Chakachatna River 5th 1. 4001001 = Unnamed 3rd (95) EE. 3rd order basins within Straight Creek 4th 1. 4001101 = Straight Creek 3rd (97) 2. 4001102 = Unnamed 3rd (98) B-59 NATUP~L LINES MANUSCRIPT #3 POINTS AND LINEAR FEATURES MAP DATA CODE DESCRIPTIONS A map of lines illustrating the following natural features: Escarpment A cliff or steep rock face of great length formed by erosion or possibly by faulting. The following describes the escarpment in the area. 1 = Not an Escarpment: Line segments on the natural line manuscript which are not escarpments. 2 = Escarpment: Line segments on the natural line manuscript which are escarpments. Fault Lines A fault line is a fracture or fracture zone in soil or in rock mass ~•here relative displacement has occurred. 1 = No Fault: No faults have been identified in the area. Only major faults are identified by this very general survey. Where the public health and safety is concerned detailed studies are needed to verify the existence and extent of known faults and to detect any additional faults. 2 Possible Fault: Conditions suggest the possible existence of a fault. Often there is little topographic expression. Many times faults will be covered by thick deposits of glacial sediments, making identification very difficult. Detailed field verification is required to establish the existence of a fault. 3 = Suspected or Inferred Fault: Possible fault which has limited topographic expression and can only be tentatively identified using B-60 aerial photography. Field verification is necessary to establish the existence of this type of fault. lf Known Fault: Fault is one whose existence has been verified using aerial photography and field work. CULTURAL LINES A map of points and lines illustrating the following cultural features: ROADS/TR..ULS/INFRASTRUCTURE NETWORK Roads All major roads were mapped. Secondary and feeder roads were not mapped. 11 =Non Paved road: Dirt or gravel covered road. 12 = Paved Road: All weather, hard or unpaved surface road. 13 Non Payed road and Existing Utility Corridor: Non paved road with a utility corridor along its route. 14 Paved Road and Existing Utility Corridor: Paved road with a utility corridor along its route. 15 = Non Paved Road and Proposed Utility Corridor: Non paved road with a new utility corridor proposed along its route. 16 Paved Road and Proposed Utility Corridor: Paved road with a new utility corridor proposed along its route. 17 Proposed Road -Point McKenzie Highway: The proposed Point McKenzie Highway. Trails Trails are marked paths used for the following functions: Dog mushing; hunting; hiking; equestrian; off road vehicle; cross country skiing; snow B-61 vehicles; and snow shoeing. 21 =Existing Trails: Existing trail system was obtained from maps supplied by DNR. Seismic Survey Lines Seismic survey lines are straight narrow cleared paths, often many miles long, used to study the underlaying geology and seismic conditions. Railroads All existing railroads currently being used were mapped. 41 = Existing Railroad Utility Corridors Utility corridors are the rights-of-way of transmission lines. Only major utility corridors were mapped. 51 = Existing Utility Corridor: MajQr existing utility corridors. 52 = Proposed Utility Corridor: Major proposed utility corridors. CULTURAL POINTS Consists of all of the extractive site -areas containing minerals that can be extracted for use. 1020 =Sand/Gravel Quarry and Borrow.Pit: Surface minerals where rock is removed to produce building materials or fill. 1030 = Subsurface Mine Entrance: Surface entrances of underground mines 1040 = Gas Well 1041 = Inactive: Operational gas wells not curr~~tly being used. 1042 Active: Gas wells currently being used~ 1050 Oil Well 1051 = Inactive: Operational oil wells not currently being used. B-62 1052 = Active: Oil wells currently being used. 1060 = Abandoned Gas or Oil Well B-63 MANUSCRIPT //4 LAND STATUS MAP DATA CODE DESCRIPTIONS CONGRESSIONAL TOHNSHIP (Fo'r the U. S. system of rectangular surveys) Under this system the land is divided into townships 6 miles square with boundaries running due north-south, east-west. Principal meridians and baselines were established as a reference system for the to~~ship surveys. The location of each township in a survey region is given with respect to the point at which the principal meridian and the baseline intersect. The coordinates that specify a particular township are read off as the number of townships north or south of the baseline; the number of townships east or west of the principal meridian is called the range. Number of Tm~ship How many tm~ships the particular to~mship lies from the baseline. n = Number of Township North/South Designation This indicates if the township falls north or south of the baseline. 1 North 2 = South Name of Baseline The baseline used for the whole Susitna Basin study area is unnamed. Number of Range How many townships the particular township lies from the meridian. n = Number of Range East/West Designation This indicates if the township falls east or west of the meridian. B-64 1 East 2 = Hest Name of Mer::dian 1 = Seward Meridian: The principle meridian used for the whole Susitna Basin study area is the Seward Meridian. OWNERSHIP No Data for Upper Talkeetna or Beluga Subbasins Describes who owns the land, and is divided into the following classification: 00 = No Data Federal 10 = Federal State 21 State Patented Land 22 State Tentatively Approved 23 = State University 24 = Other State Land Campground and Foreclosure 25 = State Selected Land Borough Land 31 = Borough Patented Land 32 = Borough Tentatively Approved Nunicipal 40 = Hunicipal Private 50 = Private B-65 AGENCY INTEREST Describes which agency(s) has an interest in a particular location. Fish and Game 1 Not Fish and Game 2 = Fish and Game Joint Fish and Game and Parks 1 = Not Joint Fish and Game and Parks 2 = Joint Fish and Game and Parks Parks 1 = Not Parks 2 = Parks Timber 1 = Not Timber 2·= Timber Highway Corridor 1 Not Highway Corridor 2 = Highway Corridor Agriculture 1 = Not Agriculture 2 = Agriculture Materials Site 1 Not Materials Site 2 Materials Site Miscellane6us Watershed 1 = Not Miscellaneous \~atershed B-66 2 = Hiscellaneous Watershed Mineral Zone 1 = Not Mineral Zone 2 = Mineral Zone FSLUPC Ecological Reserve 1 Not FSLUPC Ecological Reserve 2 = FSLUPC Ecological Reserve New Capital Site 1 = Not New Capital Site 2 = New Capital Site New Capital Site Buffer 1 Not New Capital Site Buffer 2 = New Capital Site Buffer Miscellaneous 1 = Not Miscellaneous 2 = Miscellaneous Intensive Recreation Areas 1 = Not Intensive Recreation Areas 2 = Recreation Areas B-67 Appendix C Data Sources and Mapping Hethodology Integrated Terrain Unit Map Surface Hydrology Map Points and Linear Features Map Land Status Map The following manuscripts compose the Talkeetna and Beluga Subbasin Resource Inventories: Integrated Terrain Unit Map Surface Hydrology Hap Points and Linear Features Map Land Status Map A. INTEGRATED TERRAIN UNIT MAP ( ITUM) 1. . Slope Gradient Slopes were interpreted from topographic sheets which give the general gradient of the region. High reliability of the collateral material was ensured by using U.S.G.S. topographic sheets which are regarded as th~ "standard" for regional mapping. Polygons with slopes greater or lesser than the coded slope value but below 5 acres in resolution were not mapped. Thus, slope code values give a more generalized representation of slope gradient for each polygon. Slope was interpreted from 1:37,000 scale topographic sheets have 50-foot and 100-foot contour intervals rather than from soil phase maps that exhibited detailed slo~es. The soil phase maps often delineated embankment and humocky morainal deposits as having steep slopes while these same features are not shown as slope units on the topographic map. To distinguish general slope of the land as well as the slope of micro-relief features, the interpreted slope map can be compared to the soil phase map. The slope classes used were 0-3%, 3-7%, 7-12%, 12-20%,· 20-30%, 30-45%, and 45% of greater. To interpret the slope, a scale having different line C-1 densities corresponding to contour line density at the specified slope classes was used to compare the contour lines on the topographic map. A mylar slope overlay was prepared by drawing polygons around areas of homogeneous line density. Numeric code values 1-7 were written in the resulting polygons and each map was edited for lines that did not connect or had missing code values. The.maps were finally edgematched to adjoining sheets and discrepancies were corrected by comparing them with the topographic maps. 2. Landforms The landform overlay was obtained from 1:63,360 scale blueprint landform maps (Kennerson, G. Dean/Spencer, J. Page, Geophysical Institute, University of Alaska, 1978). The blueprint lines and codes were transferred onto the stable base overlay registered to the attached topo sheet. Extra care was taken to ensure proper .registration to the basemaps because the blueprint is susceptible to shrinking and stretching. Landforms are the distintive configuration of the land surface and are environmentally significant because they influence the variation in ecologicaL factors such as water availability and exposure to solar radiation. The two distinct maps developed for landforms were physiographic division and landform types. These factors are explained in subsections below. The landform mapped is of a detailed regional scope and provides descriptions of subregonal sites and an ov~-view of morphodynamics. a. Physiographic Division Physiographic Division is a type of landform classification dividing the land surface into broad major categories. The categories are defined C-2 in Appendices Al and A2. The same collateral maps used for the landform ~ap were used to create the physiographic division overlays. The detailed soil phase map was also a good source for checking a features steepness and exact areal configuraton. The physiographic division overlay was then compared to the imagery. Quality review· was made to ensure that polygons were coded and lines closed, as well as for shape and position being accurately depicted. b. Landform Types A Landform Type is. any element of the landscape characterized by a distinctive surface expression, internal structure and sufficiently conspicuous to be classified. The flood prone areas were obtained from the Army Corps of Engineers Flood Survey Maps. Since these maps only reflected conditions of major rivers, mapping other flood prone areas relied on photo-interpretation and basemap·s. The soil survey map was -used to verify landform. Soil's parent material was used to resolve issues such as whether an area was outwash or till. The soil's parent material was reviewed to determine if the drift material was deposited by water or from a glacier. Soil phase was used to check moraines because the 1:63,360 scale topo s~eet with its 50-foot and 100-foot contour interval was often too general to identify the moraines. Hhen the data were recorded, the overlay was compared to the imagery. All polygons were edited to ensure proper coding and closing of lines. Imagery and basemaps were carefully studied to preclude omission of landform polygons. Then the 1:63,360 scale landform type overlay was transferred to the ITUM. C-3 3. General Geology The geology map was constructed by using a hand dra~vn geology collateral map at a scale of 1:250,000. The collateral map was overlain on a topographic map of the same scale and optically/manually rescaled after registering the 1:63,360 scale basemap and geology overlay to the 1:250,000 scale topographic sheet.. The rescaled geology overlay was compared to the imagery and basemaps to validate the lines, positions, and code values. Few changes were made to the bedrock geology because there was minimal topographic expression of the underlying geology type. a. Surficial Geology The surficial geology map identifying areas with or without surficial deposits was refined to match the visible pattern on the imagery and slope breaks of the topo map and soil phase. Once the 1:63,360 scale overlay containing the surficial and bedrock geology information was completed and edited to check line configuration and code values, the map was transferred to the ITUM. The data compiled from the collateral map are suitable for semi-detailed analysis and display. .The surficial deposit information map is very reliable since it was matched against identifiable patterns on the phase and basemap. b. Bedrock Geology High relianc~ was placed on the ~ollateral map and few line adjustments were made while compiling the bedrock geology overlays. Some parts of the study areas have been recently glaciated, making photo identification of bedrock units in these areas almost impossible. C-4 4. Economic Geology The economic geology overlay was prepared using a hand drawn collateral map ~t a scale of 1:250,000. The collateral map was overlain on a topographic sheet of the same scale and optically/manually rescaled, registering the 1:63,360 scale basemap and economic geology overlay to the 1:250,000 scale topographic sheet. Most economic geology units concided to a specific landform. For instance, sand dunes, moraines and flood plains were often shown as being sources of sand and gravel. The economic geology units had to be refined to the landform units they represented. The other economic geology units, potential mineral deposits, were transferred directly to the overlay. A final edit was performed to ensure map accuracy and then the overlay was transferred to the ITUM. The reliability of sand and gravel source areas is very go~d since they were drawn using the landform polygons. However, the potential mineral deposits polygons are generalized and do not imply that deposits exist throughout the polygon. Detailed field investigations will be necessary to estab~ish th~ presence of the mineral deposits. 5. Geologic Hazards The geologic hazards mapped were on a polygon by polygon basis compared to the aerial photographs. The unit descriptions were taken from the collateral documents. Where the unit boundaries were noticeably inconsistent with collateral materials, slight adjustments were made by the interpreter. The interpretation was based on stereoscopicaly viewed air photos. The data compiled from the collateral material is suitable for semi-detailed analysis C-5 and display. However, due to the inherent variability within geologic units, this data must not be substituted for detailed site mapping where public health or safety may be involved in the preparation of ~ngineering plans. ;, a. Geologic Hazard I The Geologic Hazard I overlays were compiled using 1:63,360 scale blueprint copies of geologic hazard collateral maps. The hazard lines and codes were transferred from the blueprint copies onto the mylar overlay attached to the topo. Extra care was taken to ensure proper registration to the basemap because the original was a blueprint. The rescaled overlay was compared to the landform map and the hazard lines iYere refined to landform lines. For example, primary and secondary flood zones on the geologic hazard maps were identical to active and abandoned flood plains on the landform maps, and undulating terrain \vith varying particle size on the Geologic Hazard I map corresponded to moraines on landform maps. Geologic hazards, in corresponding to a landform type, were refined using the visible patterns on the photo. Additional hazard areas not on the geologic hazard collateral were delineated using t~e photo and basemap. A final edit was made to ensure map accuracy and then the overlay was transferred to the ITUM. The reliability of the Geologic Hazard I map is very good for a regional perspective since all polygons were compared with the photo to ensure proper codes and line configuration. However, hazard areas smaller than the minimum resolution were not mapped. b. Geologic Hazard II C-6' The Geologic Hazard II overlay \vas prepared using a hand drawn collateral map at a scale of 1:250,000. The collateral map was overlain onto a topographic map of the same scale and optically/manually rescaled, registering the 1:63,360 scale basemaps and Geologic Hazard II overlay to the 1:250,000 topographic map. The overlay was then compared with the photo and topographic sheets. The lines were adjusted to match terrain features. Often areas that had high potential for land slides corresponded with moraines on the landform overlay. So, when possible, the Geologic Hazard II overlays were adjusted to the landform's polygon configuration. The Geologic Hazard II overlays were carefully checked for proper line configuration and code values, and were then transferred to the ITUM. The Geologic Hazard II map identifies large areas which could have a potential geologic hazard. Detailed site mapping is necessary to identify a particular site for a geolo.gic hazard. The general reliability of the data is good. The original collateral at a scale of 1:250,000 identified large, general areas as having hazards. These general lines were then fit to the terrain using the imagery. 6. Soil This data item was derived from the u.s. Department of Agriculture, Soil Conservation Service Soil Surveys. The majority of the studies were covered by 1:63,360 scale mosaicked blacklines from the Susitna Valley and the Beluga-Yentna soil surveys. These soil maps w·ere photographically rescaled to 1:37,000. Dynamic features such as flood plain, soils and tidal flats were updated C-7 to match current conditions found on the imagery. The finished soil overlays were carefully checked against the imagery and vegetation collateral to confirm that the soil pattern had been properly registered, reflected visible patterns on the imagery and was consistent with the vegetation map. The general interim survey soil lines were adjusted to match the more detailed vegetation lines. All of the soil maps used photos as their base. The soils overlay was prepared by registering the 1:37,000 scale basemap and soil overlay to the photographically enlarged 1:37,000 scale soil surveys. This was accomplished by overlaying the topo and soil overlay on the soil collateral. Known linear and point features were aligned on the soil map with their corresponding features on the basemap before drafting the pattern. Soil polygons under two acres were dropped or absorbed into an adjacent similar soil unit. The maps were edited against the original soil collateral for transposed codes and missing lines. Boundary lines were drawn on the soils overlay between adjoining soil surveys, because the soil surveys were made at different times and with different degrees with generalization. No two soil surveys edg~matched. Often along the interface between surveys, the lines matched fairly well, but the assigned code values were often different. The boundary between the two surveys was drawn to the nearest polygon on the ITUH. Several areas on map sheets Talkeetna Hountains, A-6 and B-1, and Anchorage D-8 of the Talkeetna Subbasin study area and several areas on map sheets Talkeetna A-3 and A-4, and Tyonek A-6, B-5, B-6, C-4, C-5 and D-5 of the Beluga Subbasin study area were unsurveyed for soils. By reading the C-8 soil descriptions and checking the surrounding soil patterns against the. image the soil lines ~•ere interpolated into the unsurveyed area. Special attention was given to vegetation and slope differences. Soil data was mapped at the soil phase level representing the most detailed level for taxanomic classification of soils. Value variations within soil units from the typical pedon are an operational part defining soils. The soils data will vary in reliability from one interpretation to the next depending upon the precision with which the pertinent values were assessed during the original collection of the soils data. Differences in soils data interpretation will cause variations of reliability. By using soil phases on the mapping unit, the descriptions can be improved as new information because available from the Soil Conservation Service. This data is used in detailed subregional analysis and display and the descriptive information of every soil phase meets the needs of the site selection process. 7. Habitat The habitat overlay ~•as compiled using the following map sources: Alaska's ~vildlife and Habitat, Volume. 1, 2, The Sea Bird Catalog, habitat maps prepared by Jack Dickerson, David Harkness, and by Paul Arreson and Dan Timm. The collatera;t. maps were drawn on mylar overlays registered to 1:63,360 scale U.S.G.S. paper topographic maps. The lines were transferred directly to the 1:63,360 scale habitat overlay, carefully registering the mylar topo map and habitat overlay to the paper topo and collateral overlays. The polygons were given code numbers which represented animal type and habitat usage. Polygons containing C-9 identical animal types and habitat usage were assigned the same code value. The habitat maps prepared by Jack Dickerson, Paul Harkness, Paul Arneson and Dan Timm had many polygon boundaries ending in straight lines along map borders. These maps are general field observation maps and are not intended to represent the exact spatial extent of the various habitats. The habitat maps were~compared against the imagery and basemap and some lines were adjusted to match obvious vegetation and terrain features. By and large, the lines reflect the configuration of the original collateral. Corrections and adjustments were made, but most lines were delineated on the habitat overlay as they appeared on the collateral. The completed overlay was then transferred to the ITUM. The reliability of this item i.s good for use at the regional level. The habitat maps, which are mainly compiled from field observation, delineate large areas as various habitat areas. Most of these habitat polygons contains a wide divergence of natural, and sometimes cultural features. Therefore, within any-area there could be sections of heavy occurrence grading down to no occurrence at all. Detailed studies of the natural and cultural features with field studies are necessary to verify the existence of a habitat. a. Habitat I The Habitat I overlay was compiled using a 1:63,360 scale habitat collateral map prepared by Paul Arneson and Dan Timm. b. Habitat II The Habitat II overlay was compiled using 1:63,360 habitat collateral maps prepared by Jack Didrlckson and Dave Harkness. C-10 c. Habitat III The Habitat III overlay was compiled using 1:63,360 habitat collateral maps obtained from Alaska Wildlife and Habitat, Vol. 2. d. Habitat IV The Habitat IV overlay was compiled using 1:63,360 habitat collateral maps obtained from Alaska's Wildlife and Habitat, Vol. 1 and 2. e. Habitat V The Habitat V overlay was compiled using 1:63,360 habitat collateral maps obtained from Seabird Catalog Information, U.S. Fish and Wildlife Service. 8. Land Use The land use map was compiled using the vegetation overlay, the topo sheet, the imagery and the 1:63,360 scale land use map supplied by the Department of Natural Resources. The Department of Natural Resources land use map was compiled using older photos and field reconnaissance studies. Many of these maps did not take into account recent development. Some polygons were not in the proper locations. Also, the map didn't fit the topo sheet. Therefore, when it .was used, continual adjustments had to be made to attain the proper registration with the mylar basemap. The land use overlay was prepared by transferring all the disturbed area "70" (cultural influence) from the vegetation overlay to the land use overlay. These areas were then given land use codes by placing the topo sheet, with the attached mylar land use overlay, on the image and interpreting the actual land use within the disturbed areas. When the interpreter was unsure about a polygons land use the information was checked using the DNR land use maps. A final check C-11 against the image was performed to identify remote residential, which was seldom delineated on the vegetation map, and to check for any other land use polygons that were overlooked. The recreational uses coded 1500, were obtained using the DNR recreation overlay. These lines were transferred directly onto the land use overlay. The collateral map did not fit the tapa sheet, therefore, it necessitated continual adjustment to obtain the best possible registration. The minimum land use polygon mapping resolution was 2.5 acres. However, the land use classification has a very detailed urban breakdown. Many of the land use classes, such as eating and drinking establishments, occur in units of 2.5 acres or smaller. Consequently, it was often necessary to aggregate these small urban units into the general classification "mixed urban build up". The general reliability of the land use map is very good. The classification uses a hierarchical classification system and may be used for detailed analysis and display as well as for general regional aplications. This data must be supported by more detailed inventories for those regulatory procedures which require an accurate count of occupied dwellings or other specific site information. 9. Vegetation This data item was prepared from 1:63,360 scale clear acetate vegetation maps supplied by the U.S. Forest Servi_e. These vegetation maps were interpreted from the same imagery that the current study uses. Each photo has a corresponding vegetation map overlay. With the collateral vegetation map attached to the proper photo, th~ C-12 vegetation polygons were transferred onto the manuscript vegetation map, which was attached to the topo basemap. The topo and manuscript basemaps were adjusted to attain registration to features on the photo. As the lines were being transferred from the vegetation collateral, the interpreter checked the position of the line work to ensure code and signature consistency. A final edit was performed to identify missing lines and uncoded polygons. The vegetation collateral map was of excellent quality and only a few areas on the imagery disagreed with the vegetation collateral. Since it was interpreted from recent photos, dynamic phenomena such as stream course configuration and land use are accuratey portrayed. The overall reliability of this data is excellent, but any planning decision requiring specific site vegetation information would require further refinement of the vegetation polygons. C-13 B. SURFACE HYDROLOGY MAP These maps consist of sequentially numbered lines and polygons and corresponding sequentially numbered code lists. The maps consist of stream courses and watershed boundaries. The maps were drawn at a scale of 1:63,360 and each map comprising the surface hydrology map is described in subsections that follow: 1. Stream The stream map, scaled at 1:63,360, was made by transferring the stream courses from the topo sheets to the hydrology manuscript as a series of straight line segments. This straight line technique makes the digitizing of manuscripts easier and this method does not significantly change the stream network configuration. The soil surveys which delineate stream courses along with the imagery were used to identify.additional streams and record them on the overlay. The imagery was used to correct stream courses that had changed as a result of stream piracy or by natural immigration across a flood plain. These corrections aided in eliminating edgematching discrepancies. The general reliability of stream course configuration was made excellent by basemap and soil survey updating to match the imagery. A copy of the hydrology manuscript ~as made for each hydrology data variable: Order, periodicity, origin, discharge profile, situation and condition, recreation uses and anadromous streams. The completed overlays were then integrated and coded. a. Order The streams from the original manuscript copy were transferred onto the stream order overlay. The stream network was assigned order values C-14 in the following manner. All unbranched tributaries are first order streams; when two channel segments of order N join they form a channel of order N+l. When streams of different orders join, the higher order stream code value is retained. The hydrology manuscript was overlain on the order map and each line segment's value was recorded on a code sheet. b. Periodicity The completed hydrology manuscript maps were compared to the topographic map and imagery. It was determined that all of the streams in the study area were perennial. c. Origin (Glacial/Nonglacial) The streams from the original manuscript copy were transferred onto the overlay. All streams were then compared to the imagery and basem~ps. Streams with headwater or tributaries originating from a glacier were coded glacial and all others nonglacial. The hydrology manuscript map was overlain on the origin overlay and each line segment code was recorded. d. Discharge Profile (Mountain/Lowland) All streams from the hydrology manuscript were transferred onto the discharge profile overlay. The overlay was then compared to the imagery and basemap. Streams with headwater or tributaries which flow above 1500 feet or above the timber line were coded mountainous. All others were coded lowland. The hydrology manuscript map was overlain on the discharge profile map and each line segment's value was recorded on a C-15 code sheet. e. Situation All the streams reflected on the hydrology manuscr~pt were transferred onto the situation overlay. By using the topographic map and imagery, stream course segments contained within water bodies were identified. This made it possible to produce a computer plot of stream courses and water bodies from the ITUM and drop the line segments within the waterbodies. f. Condition A review of the imagery and basemap established that there were no braided stream courses within the study area. g. Anadromous Streams The anadromous stream overlay was compiled using a small scaled anadromous stream collateral map supplied by the client. The maps ~•ere reformatted to 1:63,360 and all streams on the final manuscript were coded accordingly. The general reliability of this mapped item is good for the major rivers. However, because the origina collateral was at a small scale, it didn't show many of the smaller streams. They were, therefore, coded as ·not an anadromous stream. 2. Watersheds The completed stream course maps were mosaicked together and polygons were dra·wn around every 3rd order or higher basin. The general watershed boundaries were then adjusted to the topography using the basemap and imagery. C-16 a. Topologic Number The resulting watershed system was coded hierarchically, making it possible to identify which basins flow into which basin. The general reliability of the watershed map is very good. However, field studies would be required to determine or verify the precise break in drainage between two watersheds. C-17 C. POINTS AND LINEAR FEATURES ~4P 1. Natural Lines Natural lines were composed of two variables: escarpments and fault lines. An overlay was completed for each variable, a·:1d all lines >.;rere carefully checked against the imagery to assure proper location and code value. Finally, the manuscripts were compiled, edgematched, sequentially numbered, and coded. a. Escarpment Escarpments were obtained from the blueprint geologic hazards map at a scale of 1:63,360. The line representing the escarpment was transferred from the geologic hazards map onto the natural line overlay which was attached to the basemap. The overlay was compared to the photo and basemap to verify the position of the major escarpments. The general reliability of this item is excellent. Smaller escarpments below the minimum mag resolution were not mapped. b. Fault Lines Faults were mapped from the blueprint copy of the geology hazards map ata scale of 1:63,360. The faults were transferred from the geologic hazard map onto the natural lines overlay. The overlay was compared to the image adjusting the lines to perceptible linements. The general reliability of this item is good, but detailed field survey is needed where public health and safety are involved. 2. Cultural Points and Lines The cultural points and lines were composed of two variables: Roads/Trails/Infrastructure and Extractive Sites. C-18 The Roads/Trails/Infrastructure network was interpreted using the.basemap and imagery. Cultural points were mapped using the basemaps, imagery and land use maps supplied by the client. Each of the variables were carefully checked against the imagery to assure proper location and code value. Finally, the manuscripts were compiled, edgematched, numbered and coded. a. Roads/Trails/Infrastructure The methods used for mapping roads involved identifying the type of road and its configuration on the. imagery and then using the basemap to assure proper registration onto the infrastructure overlay. Since the road configuration on the topo sheet was often found to be incorrect, roads were mapped primarily using t~e imagery. Only major roads and highways were mapped and feeder roads and residential street patterns were not. Trails were mapped from recreation collateral supplied by the Alaska Department of Natural Resources. An attempt was made to photo check each trail, but we were unable to because of their narrowness and the dense forest cover. Railroads were obtained directly from the tapa sheet and compared to the imagery to assure that the tapa sheet patterns were correct. Major seismic survey lines were identified-on the image and transferred to the infrastructure overlay using the basemap to assure proper registration. b. Extractive Sites The topo sheet and imagery were used to identify sand and gravel C-19 quarries and barrow pits. The topo sheet tended to depict the larger quarries and pits, while the imagery reflected more recent and smaller ones. Mines and wells were mapped using a combination of the topo sheet, ·im3gery and land use collateral. D. LAl'ID STATUS MAP The land status map \vas compiled using the 1:63,360 scale basemaps and the 1:63,360 scale Agency Interest and Land Ownership maps obtained from the Alaska Department of Natural Resources. The manuscript map included overlays on township and range, ownership, and agency interest. The township and range was transferred directly from the basemap. The ownership and agency interests were compiled using the Department of Natural Resource land status map. To compile the manuscript, the township and range lines were transferred from the basemap onto the land status manuscript map. Ownership and Agency Interest overlays were made by registering the blueprint land status collateral maps to the basemap and transferring the lines onto the overlays. The reforma.tted overlays were then transferred to the manuscript copy. There was little integration needed since each data overlay line work followed township and range lines. The manuscript and polygons were sequentialy numbered and each polygon was assigned code values using the basemap and data overlays. The code values were recorded on co.de sheets •· 1. Congressional Townships for the U.S. System of Rectangular Surveys Township and range was interpreted directly from the topographic map. The township and range overlay was fastened to the topographic sheet and the lines drafted. The toivnship and range lines were not surveyed in the study area, therefore, lines from adjoining sheets frequently did not edgematch. The general reliability of this data item is good. When the lines are surveyed, the change in position of the surveyed line will probably be C-21 insignificant considering the minimum 2.5 acre resolution. 2. 01mership Ownership was obtained from blueprinted o1mership and agency interest maps supplied by the Alaska Department of Natural Resources. The ownership lines and codes had been overlain on a copy of the 1:63,360 scale topographic map and blueprinted. Often the ownership overlay shifted on the topo sheet, resulting in an improper registration on the finished blueprint. Because the ownership was done on a blueprint, the map stretched considerably. The ownership overlay was produced by registering the mylar topo sheet with the ownership overlay attached to the blueprinted O'ivnership lines. The blueprinted topo lines were ignored. Since o1vnership in the area had ·been designed using the township and range system, special .care 'vas taken to register the township and range lines on the topo to the ownership lines on ·the blueprints by using·a template. The template divided a typical section into 8 smaller sections, and adjusted the ownership lines to their proper positions. The general reliability of the O'ivnership overlay is good, because the ownership lines were adjusted to fit the to,vn·ship and range survey. No additional po~ygons were created or code values changed. 3. Agency Interest The agency interest overlay was produced using information obtained from the ownership and agency interest maps supplied by the Department of Natural Resources. The collateral map received was a 1:63,360 scale blueprint copy of a clear acetate land use map and a clear acetate agency interest map overlain on a paper topo sheet. During the blueprint process, the overlays shifted on the basemap and the collateral stretched causing improper C-22 registration to the paper topo map. The agency interest overlay was produced by registering it and the mylar topographic sheet to the agency interest lines on the blueprint copy, ignoring the blueprinted topograhic map. The collateral agency interest lines were carefully registered to the township and range lines on the mylar basemap. The lines were transferred to the agency interest overlays. A template, showing eight smaller sections, was used during this process to insure proper placement of lines. Special care to ensure that the agency interest information was properly registered to the basemap enhanced the reliability of the finished overlay. No additional polygons were created or code values changed. C-23 Appendix Dl Grid Hulti-Variable File Talkeetna Subbasin SUSITNA RIVER BASIN Talkeetna Subbasin GRID MULTIVARIABLE FILE (* indicates the position has been packed for storage efficiency) Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Description Row Column Map Module Number Unique Terrain Unit Number Unique Land Status Number Unique Stream Course Number Terrain Unit Polygon Number Average Slope Physiographic Division/Landform* Surficial Geology Bedrock/Economic Geology* Geologic Hazards* Soils Habitat I,II,III* Habitat IV,V* Land Use Vegetation I,II* Vegetation III,IV* Land Status Polygon Number Township Range Land Ownership Agency Interest I* Agency Interest II* Agency Interest III* Agency Interest IV* Stream Segment Number Stream I* Stream II* Cultural Line Sequence Number Roads Trails, Seismic Line, Railroads, and Utilities* Extractive Sites Watersheds Natural Lines* Soil Expansion I* Soil Expansion II* Soil Expansion III* Soil Capability Class Soil Priority Group* Soil Average Point Value/Specific Slope* Soil K Values/Potential Grazing* Dl-1 TALKEETNA SUBBASIN DESCRIPTION OF PACKED V!RIABLES (Note: Digits are packed from right to left. Rightmost position is # one.) POSITION Terrain Units 9 11 12 14 15 17 18 Land Status 23 24 25 TOTAL 3 OF DIGITS 4 4 3 4 3 4 4 5 5· 4 RANGE 4-4 1-3 3-4 1-2 2-3 1-1 3-4 2-2 1-1 2-3 1-1 3-4 1-2 3-4 1-2 5-5 4-4 3-3 2-2 1-1 5-5 4-4 3-3 2-2 1-1 4-4 3-3 DESCRIPTION Physiographic Division Landform Bedrock Geology Economic Geology Geologic Hazards I Geologic Hazards II Habitat I Habitat II Habitat III Habitat IV Habitat V Primary Vegetation Secondary Vegetation Tertiary Vegetation Quarternary Vegetation Fish and Game Fish, Game and Parks Parks Timber Highway Corridor Agriculture Naterials Site Misc. Watershed Mineral Zone FSLUPC Ecological Reserve New Capitol Site New Capitol Site Buffer Dl-2 2-2 Hiscellaneous 1-1 Intensive Recreation Areas 26 5 5-S Boro Natural Buffer 4-4 Bora 'Hayside 3-3 Excl. 2-2 Other RET. 1-1 F/\:J Habitat 200 ft. setback Streams 28 2 2-2 Stream Order 1-1 Stream Periodicity 29 4 4-4 Stream Origin 3-3 Stream Profile 2-2 Situation 1-1 Condition .Cultural Lines 32 4-4 Trails 3-3 Seismic Lines 2-2 Railroads 1-1 Utilities Natural Lines 35 2 2-2 Escarpments 1-1 Fault Lines Soil Limitations Legend 36 4 4-4 Septic Tank Absorptiqn Fields 7 3-3 Shallow Excavation 7 2-2 Dwellings without Basements 7 1-1 Dwellings with Basements 7 37 4 4-4 Small Commercial Buildings 7 3-3 Local Roads and Streets 7 2-2 Roadfill Source 7 1-1 Drainage 8 Dl-3 38 Soil Expansions 40 41 42 4 3 3 3 4-4 3-3 2-2 1-1 3-3 2-2 1-1 2-3 1-1 2-3 1-1 Camping Areas Picnic Areas Playgrounds Paths and Trails Grains Hay, Silage and Pasture Potatoes Average Point Value Specific Slope Soil K Values Potential Grazing Dl-4 7 7 7 7 Legend 4 4 4 5 2 1 6 Talkeetna GRID CALCULATIONS -UTM ZONE 5 - 6 million meters has been subtracted from the vertical coordinate GRIPS minimum x coordinate = 576044.056m maximum x coordinate = 680315.715m minimum y coordinate = 791529.160m maximum y coordinate 948103.292m origin = 576044.056, 948103.292 The grid cell is 10 acres or 201.168m/ .d sJ. e Vertical shift = 14140.0 Horizontal shift = -8590.0 ~Iaximum rows = 2337 Maximum columns = 1557 GRIDPST OUTPUT NUMBER OF ROWS 2337/3 = 779 OUTPUT NUMBER OF COLUMNS= 1557/3 = 519 for GRIPS 201.68/3 This produces a grid file with 231925 cells that contain data. Dl-5 = 67.056m/ .d SJ. e · Appendix D2 Grid Multi-Variable File Beluga Subbasin SUSITNA RIVER BASIN Beluga Subbasin GRID HULTIVARIABLE FILE (* indicates the position has been packed for storage efficiency) Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2l 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Description Row Column Map Module Number Unique Terrain Unit Number Unique Land Status Number -Empty Position - Terrain Unit Polygon Number Average Slope Physiographic Division/Landform* Surficial Geology Bedrock/Economic Geology* (No·Data) Geologic Hazards* (No Data) Soils Habitat I,II,III* (No Data) Habitat IV,V* (No Data) Land Use Vegetation I,II* Vegetation III,IV* Land Status Polygon Number Township Range Section Corners (Points) Stream 'I* Stream II* Watersheds Roads Trails, Seismic Line, Railroads, and Utilities* Natural Lines* Extractive Sites Soil Expansion I* Soil Expansion II* Soil Expansion III* Soil Capability Class Soil Priority Group* Soil Average Point Value/Specific Slope* Soil K Values/Potential Grazing* D2-1 BELUGA SUBBASIN DESCRIPTION OF PACKED VARIABLES (Note: Digits are packed from right to left. Rightmost position is II one.) TOTAL 3 POSITION OF DIGITS RANGE DESCRIPTION Terrain Units 9 4 4-4 Physiographic Division 1-3 Landform 11 4 3-4 Bedrock. Geology 1-2 Economic Geology 12 3 2-3 Geologic Hazards I 1-1 Geologic Hazards II 14 4 3-4 Habitat I 2-2 Habitat II 1-1 Habitat III 15 3 2-3 Habitat IV 1-1 Habitat v 17 4 3-4 Primary Vegetation 1-2 Secondary Vegetation 18 4 3-4 Tertiary Vegetation 1-2 Q~arternary Vegetation Streams 23 2 2-2 Stream Order 1-1 Stream Periodicity 24 4 4-4 Stream Origin 3-3 Stream Profile 2-2 Situation 1-1 Condition Natural Lines 28 2 2-2 Escarpments 1-1 Fault Lines D2-2 Soil Limitations LEGEND 30 4 4-4 Septic Tank Absorption Fields 7 3-3 Shallow Excavation 7 2-2 Dwellings without Basements 7 1-1 Dwellings with Basements 7 31 4 4-4 Small Commercial Buildings 7 3-3 Local Roads and Streets 7 2-2 Roadfill Source 7 1-1 Drainage 8 32 4 4-4 Camping Areas 7 3-3 Picnic Areas 7 2-2 Playgrounds 7 1-1 Paths and Trails 7 Soil Expansions 34 3 3-3 Grains 4 2-2 Hay, Silage and Pasture 4 1-1 Pot~ toes 4 35 3 2-3 Average Point Value 5 1-1 Specific Slope 2 36 3 2-3 Soil K Values 1 1-1 Potential Grazing 6 D2-3 Beluga GRID CALCULATIONS -UTM ZONE 5 - 6 million meters has been subtracted from the vertical coordinates. GRIPS minimum x coordinate = 549892 .116m maximum X coordinate = 622618.340m minimum y coordinate 762334.285m maximum y coordinate = 937441.388m origin = 549892.216, 937441.388 The grid cell size is 10 acres on 20.1.168m/ "d Sl. e For grips 201.16?/3 = 67.056m/ "d Sl. e Vertical shift = 13980.9778 Horizontal shift = 8199.4924 Maximum rm.;rs = 2613 Mximum columns = 1086 GRIDPS'J; output number of rO\vS 2613/3 = 871 rows output number of columns 1086/3 = 362 columns This produces a grid file with 145042 cells that contain data. D?-l -~ Appendix El Interpretive Soil Hatrix Talkeetna Subbasin TALKEETNA SOIL EXPANSION LEGENDS 1. Soil K Value (Erosion) .00 -.49 (implied decimal point in computer file) 2. Specific Slope 1 -Nearly level 0 -3% A 2 -Undulating 3 -7% B 3 -Rolling 7 -12% c 4 -Hilly 12 -20% D 5 -Hod. Steep 20 -30% E 6 -Steep 30 -45% F 7 -Very Steep )45% G. 8 -Variable 0 -Water 3. Agricultural.Capability Class 00 -t~ater 21 -lie 22 -IIw 24 -lie 30 -III 31 -IIIe 32 -IIIw 33 -Ills 41 -IVe 42 -IVw 43 -IVs 61 -VIe 62 -VIw 63 -VIs 71 -VIle 72 -VIIw 73 -VIIs 83 -VIlis 90 -Gravel pits 4. Soil Priority_Group: Grain, Hay, Silage, Pasture and Potatoes 6 -Suitable 5 4 3 2 1 El-l 0 -Unsuitable (includes ~.;ater) 5. Soil Average Point Value 0.0 -6.0 (implied decimal point between digits in computer file) 6. Important Grazing Lands Potential 1 -Excellent (Ex) 2 -Good (Gd) 3 -Fair (Fa) 4 -Poor (Pr) 5 -Water ·1. Soil Limitations 1 -Slight (St) 2 -Moderate (M) 3 -Severe ( Sr) · 0 -Water 8. Soil Drainage Class 1 -Excessively Drained (E) 2 -Somewhat Excessively Drained (SE) 3 -Well Drained (W) 4 -Moderately Well Drained (M) 5 -Some~vhat Poorly Drained ( SP) 6 -Poorly Drained (P) 7 -Very Poorly Drained (VP) 8 -Variable Drainage (VAR) 0 -Water El-2 SOIL EXPANSION ~·f.ATRIX FOI<. GRID ~-IVF TAIXEEn;A S UBBASI:.\ SOIL\ GRID ~WF POSITION . T:::Pt:. 36 ':J7 38 39 40 41 4 --115 333'~ 3331 3333 71 000 006 ') • ., r L.b!; 1, , ~o 3312 1211; 1113 22 1;44 l;Oi 372 117 3333 3J2l 3121 63 000 001 ?O':> ~uJ 11'=' ... \) 3311 1313 1113 24 556 531 371 119 3311 2313 1123 21 1;55 ·472 371 12.0 3322 3Jl3 2333 31 . 21;4 333 371 1 .., ~ -L.!. 3333 3337 3333 82 000 001 05!; 122 3333 3336 3333 1;2 030 101 373 123 3311 1313 1113 33 21;3 301 !;32 124 3311 2313 1123 31 21;.3 302 !;32 ,..,- .I. <..:J 3322 3313 2233 31 232 233 /;32 126 3333 3323 3333 41 020 071; 433 127 3333 3337 3333 82 000 001 43!; 123 3333 3336 3333 62 000 001 284 129 3333 3336-3333 '? o_ 000 001 /;34 130 1311 1')'1 '• -J.J 1113 .24 666 601 /;31 1 ~, .). 1311 2213 1123 21 465 502 1;31 132 3333 3326 3333 82 000 001 054 133 3311 1113 3333 83 000 005 054 134 1311 1213 1123 33 232 231 372 1?-JJ 1311 2213 1123 31 232 232 372 135 2322 3213 2233 31 121 133 372 137 333J "3323 3333 !;.1 010 03!; 373 138 3333 3323 3333 61 000 005 J7-4 139 3333 3336 3333 72 000 001 2l;4 ll;i) 3333 3336 3333 32 031 1:11 433 ll;l 3311 1213 1113 33 232 231 1;32 ~ '·? .1..-:-3311 2213 1123 31 232 232 432 lff3 3322 3..,,.._, ..:..J.....J 2.233 31 231 203 432 1!;4 3333 3323 3333 41 020 07l; lJ-33 145 3333 3323 3333 61 000 005 /;34 1!;6 3333 3333 3333 71 000 006 434 147 3333 3326 3333 42 010 031 433 1.!;8 3312 1116 1113 33 142 231 433 1'•9 3333 3324 3332 72 000 001 054 150 3333 3336 3333 62 020 071 374 151 3311 1213 1113 24 565 531 431 152 3311 2213 1123 21 465 502 /;31 1t:;"J .J.J 3322 2213 2223 . 31 354 403 431 15/r 3333 3323 3333 41 130 134 432 155 3333 3323 3333 61 000 005 433 157 3333 3333 3333 71 000 OOG 434 153 3311 1213 1113 24 556 531 431 159 3311 2213 1123 21 455 472 431 160 3322 3213 2233 .31 244 333 !•31 16!. 3333 3323 3333 41 130 134 432 152 3333 3323 3333 61 000 005 !;33 163 3333 3313 3121 33 243 301 152 164 3311 1213 1113 2l; 555 501 431 155 3311 2213 1123 21 455 l;72 431 166 3322 3213 2233 31 2lr4 333 431 167 3333 3323 3333 41 130 . 13l; l;J2 168 3333 3323 3333 169 3333 3333 33JJ 170 3311 1213 1113 171 3311 2213 1123 172 3322 3213 2233 173 3333 3323 3333 174 3333 3323 3333 175 3311 1213 1113 176 3311 2213 1123 177 3322 3213 2233 178 3333 3323 3333 179 3333 3323 3333 180 3333 3337 3333 181 2312 1313 1113 132 3333 3336 3333 183 3333 3313 3121 184 3333 3313 3332 135 3333 3331 3333 186 3333 3337 3333 187 3333 3337 3333 188 3333 3326 3223 189 3311 1313 1113 190 3311 2313 1123 191 3322 3313 2233 192 3333 3323 3333 193 3333 3323 3333 194 3333'3333 3333 401 3333 3336 3333 402 3333 3Jl3 3333 ~03 3333 3337 3333 404 3333 3337 3333 ~05 3333 3337 3333 405 3333 3337 3333 407 3333 3337 3333 408 3333 3323 3113 409 3333 3336 3333 410 1111 1213 1113 411 1111 2213 1123 412 2222 3213 2233 413 3333 3323 3333 414 3333 3323 3333 415 3333 3323 3333 416 3333 3333 3333 417 3333 3333 3333 418 3333 3337 3333 419 3333 3336 3333 420 3333 3336 3333 421 3333 3326 3333 422 3333 3336 3333 423 3333 3336 3333 424 3333 3337 3333 425 3333 3337 3333 61 000 00.5 71 000 006 33 122 l"il 31 222 202 31 221 173 '•1 010 034 61 000 005 33 233 271. 31 233 272 31 022 133 41 210 10!• 61 000 005 82 000 001 2l: 666 601 '•2 030 101 2l~ 666 601 42 030 101 83 000 007 82 000 001 82 000 001 72 . 032 171 24 666 601 21 566 572 31 35!• L,03 41 240 204 61 000 005 71 000 006 '•2 030 101 31 2lr4 331 82 000 001 82 000 002 81 000 001 81 000 007. 82 000 001 42 000 001 62 020 071 33 132 201 31 132 202 31 121 133 41 010 034 41 010 03!1- 61 000 005 71 000 006 7l 000 006 81 021 102 52 010 032 52 010 033 42 010 032 42 030 101 42 030 102 82 000 001 82 000 002 433 '• 3 t, !;32 '•32 432 '•33 '• 3!. lf32 ll32 !132 !133 43lf 05lf 371 323 201 152 004 05!f OSlr 373 431 lr31 1,3 L !132 !133 371, 373 101 OOL, ooz. 004 004 054 l,92 37Lf 431 '•31 lf31 432 lf32 433 43lf lr34 1,93 003 003 493 323 323 054 054 l;2G 3333 3Jl7 3333 72 000 001 054 1;27 3333 3337 3333 72 000 002 05l;. 423 3333 3326 3323 52 010 03l /193 42.9 3333 3326 3333 '•2 010 031 '•33 430 JJ33 3337 3333 82 000 001 05l, I.'> 1 .,.J ... 3333 3337 3333 32 000 001 054 432 3333 3313 3121 Zl;. 666 601 201 433 3333 3.326 3223 72 032 171 3.73 434 3311 1313 1111 21 1,65 501 201 435 3312 1116 1113 33 142 231 433 l;35 3312 1116 1113 42 :1,32 201 493 !,37 3333 3326 3233 42 030 101 433 43o 3333 3326 3233 42 030 102 '•33 '•3913322 3213 2233 61 030 103 371 440 3333 3323 3333 61 030 104 372 4'·, ..... 3333 3333 3333 71 000 005 373 I. /. '? .... ~-3333 3333 3333 71 000 005 374 !;43 3333 3233 3333 81 000 003 494 l~4~ 3333 3233 3333 81 000 005 494 4!.5 3333 3233 3333 81 000 007 494 446 3333 3233 3333 81 000 006 494 447 3333 3233 3333 81 000 003 '•94 t,4s 3333 3233 3333 81 000 006 /~94 !;.49 3333 3336 3333 83 000 007 004 450 3333 3323 3121 42 000 001 104 !;51 ·3311 1213 1113 24 555 501 '•31 452 3311 2213 1123 .. 21 455 472 '•31 453 3322 3213 2233 31 244 333 /;31 454 3333 3323 3333 !,1 130 134 /~32 455 3333 3323 3333 61 000 005 1~33 !;.55 3333 3333 3333 71 000 006 434 457 3311 1213 1113 33 233 271 l•92 453 3333 3337 3333 82 000 001 054 459 3311 1213 11.13 33 233 271 l•32 460 3311 2213 1123 31 233 272 /~32 451 3322 3213 2233 31 022 133 432. 462 3333 3313 3121 33 243. 301 152 463 3311 1213 1113 24 556 531 1;31 454 3333 3313 3l.2.1. 22 462 401 ·.:; 492 ··· .. 465 J333 3333 3333 83 000 004 494 --466 1311 2213 1123 21 '~65 502 431 !;6713 333 3337 3333 82 000 001 004 458 3333 3336 3333 52 010 031 003 459 2312 1313 1113 24 666 601 371 470 3333 3333 3333 83 000 003 '•94 471 3311 1213 1113 24 555 531 !~31 472 3311 2213 1123 21 465 502 1;31 473 3322 2213 2223 31 354 403 !;.31 474 3311 2213 1123 61 040 132 371 475 3312 1116 1113 33 142 232 433 476 3312 1116 1113 33 142 233 433 '·77 3333 3337 3333 82 000 003 054 '~ 7. 3 3333 3JZ6 3333 1;2 010. 033 493 479 3333 3331 3333 71 000 006 28!~ 1,so 1311 12l3 1113 21; 666 601 1;31 4Q1 u_ 3333 3233. 3333 81 000 007 1:9!~ 482 3311 2333 1113 51 030 102 434 483 3333 3233 3333 81 000 OOt; h94 48L~ 3322 3333 2233 51 030 103 434 t~ss 3333 33]3 3333 51 030 101.: 434 485 3333 3336 3333 52 010 OJ!, 003 1;87 3311 2213 1123 21 455 .1;72 431 483 3322 3213 2233 31 244 333 '•31 L;89 3·333 3313 3332 42 030. 101 152 490 3333 3336 3333 72 000 001 2l~4 491 1111 2213 1123 31 132 202 /~31 49-2 3333 3337 3333 82 000 001 004 493 3311 1213 1113 -· . 33 122 171 432 494 1111 1213 1113 33 132 201 l;31 495 1111 1213 1113 33 132 201 431 L;96 3311 2313 1123 21 566 572 431 497 3322 3313 2233 31 354 1;03 /;31 493 3333 3336 3333 52 010 033 003 499 3333 3233 3333 81 000 006 !~94 500 3333 3333 3333 71 000 007 43l} 501 3333 332.6 3233 42 020 073 1,33 . 502 3333 33J6 3333 52 010 036 003. 503 3333 3326 3333 42 010 031 l;33 504 1311 2213 1123 31 232 232 372 505 3333 3336 3333 83 000 007 004 506 3333 3333 3333 73 000 007 49lr 507 3333 3323 3333 '61 000 006 l;33 508 3333 3323 3333 61 000 005 l;33 509 3333 3331 3333 83 000 007 OOl; 510 3311 2213 1123 63 040. 131 371 511 3333 3331 3333 71 000 007 284 512 3333 3333 3333 71 040 132 l;9l 513 3333 3333 3333 71 040 . 133 1;91 5i4 3333 3333 3333 71 040 13l; 491 515 333'3 3333 3333 71 040 135 491 516 3333 3333 3333 71 040 136 l;91 517 3333 3333 3333 71 040 137 491 518 3333 3333 3333 71 040 131 491 519 3333 3336 3333 72 000 003 . 24lJ. 520 3333 3333 3333 71 Ol;O 134 491 521 2312 2313 1123 21 465 502 371 522 3333 3313 3333 71 000 005 433 523 3333 3336 3333 72 000 002 2l~4 52! f 3222 2313 2233 71 030 103 l;32 52 5 3333 3323 3333 63 000 005 374 526 1311 1213 1123 43 020 071 372 527 3333 3326 3233 62 030 103 493 528 3333 3326 3233 62 030 102 1;93 529 3333 323J 3333 81 000 007 494 530 ,...J '"}? ._).J --'~ ]213 "1"'7'"'? L~JJ ,..1 ll_ 030 Hn 371 53l JJ3J 33:~6 ., ? '• .... -' _.) _) 62 030 101 1;93 532 3311 121:~ 1113 21 ll;Q 171 !;92 5':1< -'~ 3311 1?..1.] lllJ 21 1l:O 172 1;.92 53!! 3311 12lJ 1113 21 140 173 1;92 ::;3::; 3333 333G 3333 42 030 103 32.3 536 3333 3233 3333 81 000 004 491+ 537 3333 332.3 3333 61 030 10{+ 372 -.,.., J.J(I 333J 3336 3333 72 000 005 1,92 539 3333 3336 ""' ........ -. .)..).).) 42 020 073 493 5!~0 3333 3336 3333 ,,,., •"-020 07!, 493 5!;1 3333 333J 3333 71 656 605 491 >:I.? J'-'!'_ 3333 3337 3333 81 021 102 493 543 3333 3338 3333• 82 000 008 004 600 3322 2223 2222 .41 000 001 104 601 3333 3313 3121 22 '•62 401 /+92 602 3333 3337 3333 82 000 001 054 603 3333 3313 3121 33 243 301 152 60!·,1111 2213 1123 31 132 202 431 605 3333 3326 3333 t,z 010 032 493 606 3333 3337 3333 82 000 001 054 607 3333 3323 3333 '•1 010 OJL, 432 608 "~...,.., .).)_).) 333& 3333 l·? ,,_ 030 101 323 609 3311 2313 1123 21 455 472 371 610 3311 ~ ?1 ':: .L"---1113 2l~ ·555 501 431 611 3311 2213 1123 21 455 472 431 612 3322 3213 2233 '31 244 333 1;31 613 3333 3323 3333 41 130 134 432 c. 1 '· '-'-!--...,. 3333 3323 3333 61 000 005 433 62.5 3333 3333 3333 71 000 006 /f34 61 r .LO 3333 3336 3333' 62 020 071 374 617 3333 3337 3333-. 72 000 001 054 618 3333 3325 3233 42 030 101 lf33 619 J333 3326 3233 42 030 102 !~33 620 2222. 3213 2233 31 121 133 lf31 621 3"7" _:>_,_) 3323 3333 61 000 005 433 622 3312 1116 llr3 33 142 231 !~33 623 3311 1213 1113 24 565 531 l;31 624 3333 3333 3333 71 000 006 434 625 3333 3323 3333 61 000 005 433 626 3311 22L3 1123 ?~ -J... lf65 502 431 627 3311 2213 1123 61 040 132 371 rr,n o.:..o 3322 3213 2233 61 030 103 371 6?0 ~--3333 3323 3333 61 030 104 372 630 3333 3333 3333 71 000 005 373 631 3333 3333 3333 71 000 006 374 632 3333 3333 3333 71 040 133 491 633 3333 3333 3333 71 040 13l;. !;91 63!;. 3333 3333 3333 71 040 135 lf91 635 3333 3333 3333 71 ot,.o. 137 491 636 2312 1313 1113 24 666 601 371 637 3311 2213 1123 31 232 232 432 638 3333 3336 3333 72 000 001 21;.4 639 33ll 1213 1113 33 232 231 '•32 640 3333 3Jl3 3121 33 000 001 374 61~1 3333 3331 3333 71 000 006 284 642 3333 33.36 3333 72 000 002 2/•4 6!;.3 3333 332Lf 3332 72 ·ooo 001 054. 6!•4 3333 3326 3333 '•2 010 03l 433 6!;.5 3333 3336 3333 62 020 071 37!. 646 3333 3323 3333 IJ.l 010 034 1•32 6!•7 3333 3333 3333 71 000 006 14-3!;. '648 3322 3213 2233 31 231 203 !;.32 649 3333 3323 3333 41 130 13l~ /•32 650 3333 3326 3333 42 010 031 433 -------999 0000 oooo opoo 00 000 000 995' Appendix E2 Interpretive Soil Hatrix Beluga Subbasin BELUGA SOIL EXPANSION LEGENDS 1. Soil K Value (Erosion) .00 -.49 (implied decimal point in computer file) 2. Specific Slope 1 -Nearly level 0 -3% A 2 -Undulating 3 -7% B 3 -Rolling 7 -12% c 4 -Hilly 12 -20% D 5 -Mod. Steep 20 -30% E 6 -Steep 30 -45% F 7 -Very Steep )45% G 8 -Variable 0 -Water 3. Agricultural Capability Class 00 -Hater 21 -IIe 22 -IIw 24 -IIc 30 -III 31 -IIIe 32 IIIw 33 -Ills 41 -IVe 42 -IVw 43 -IVs 61 -VIe 62 -VIw 63 -VIs 71 -VIle 72 -VIIw 73 -VIIs 83 -VIIIs 90 -Gravel pits 4. Soil Priority Group: Grain, Hay, Silage, Pasture and Potatoes 6 -Suitable 5 4 3 2 1 E2-l 0 -Unsuitable (includes water) 5. Soil Average Point Value 0.0 -6.0 (i~plied decimal point between digits in computer file) 6. Important Grazing Lands Potential 1 -Excellent (Ex) 2 -Good (Gd) 3 -Fair (Fa) 4 -Poor (Pr) 5 -Water 7. Soil Limitations 1 -Slight (St) 2 -Moderate Of) 3 -Severe (Sr) 0 -\-later 8. Soil Drainage Class 1 -Excessively Drained (E) 2 -Some,.;hat Excessively Drained ( SE) 3 -Well Drained (W) 4 -Moderately Well Drained (M) 5 -Somewhat Poorly Drained (SP) 6 -Poorly Drained (P) 7 -Very Poorly Drained (VP) 8 -Variable Drainage (VAR) 0 -\-later E2-2 SOIL TYPE 115 11 .--0 li.7 11" .1.. ._, 119 120 121. 122 1 .... 'J .t;....} 12!; 125 1?" --0 127 128 129 130 131 132 133 134 135 135 137 133 139 140 141 1lf2 143 1l,!, 145 145 147 148 149 150 151 152 1 -.., ~.:u 154 156 157 153 159 160 161 162 163 1G4 165 166 167 in 3333 3331 3312 12H 3333 J321 3311 1313 3311 2313 3322 3313 3333 3337 3333 3336 3311 1313 3311 2313 3322 3313 3333 3323 3333 3337 3333 3336 3333 3336 1311 1213 1311 2213 3333 3326 3311 1113 1311 1213 1311 .2213 2322 3213 3.,.,., ..JJ..J ""!';?4'J .:J...~ .... J 3333 3323 3333 3336 3333 3336 3311 1213 3311 2213 3322 3 ')-, ':1 L.J..) 3333 3323 3333 3323 3333 3333 s·OIL EXP.A.i.1SION NATRIX FOR GRID HVF BELUGA SUBBASIN GRID NVF POSITION 2 "3 34 22.. 36 3333 71 000 006 28!; 1113 22 1;44 401 372 3121 63 000 001 283 1113 24 556 531 371 1123 21 !;55 ·l;]2 371 2333 31 2l;4 333 371 3333 82 000 001 054 3333 l;2 030 101 373 1113 33 243 301 432 1123 31 243 302 432 2233 31 232 233 '•32 3333 41 020 071; 433 3333 82 000 001 431; .,.., .... .., ..)..J.)..) 62 000 001 284 3333. 62 000 001 1;34 1113 24 666 601 !;31 1123 21 465 502 431 3333 82 000 001 054 3333 83 000 005 054 1123 33 '232 231 372 1123 31 232 232 372 2233 31 121 133 372 3333 l;1 010 03l; 373 3333 61 000 005 3H 3333 72 000 001 2l;4 3333 32 o:n 131 '·33 1113 33 232 231 !;32 1123 31 232 232 432 2233 31 231 203 432 3333 41 020 07l. 433 3333 61 000 005 lt34 3333 71 000 006 !;.34 3333 3326 3333 42 oio 031 433' 3312 1116 1113 33 142 231 433 3333 332/~ 3332 72 000 001 054 3333 3336 3333 62 020 071 374 3311 1213 1113 24 565 531 !;31 3311 2213 1123 21 465 502 431 3322 2213 2223 31 354 403 431 3333 3323 3333 41 130 134 432 3333 3323 3333 61 000 005 lf33 3333 3333 3333 71 000 006 !;.34 3311 12.13 1113 24 556 531 431 3311 2213 1123 21 '•55 472 lf31 3322 3213 2233 31 2!~4 333 !•31 3333 3323 3333 41 i30 134 432 3333 3323 3333 61 000 005 433 3333 3313 3121 33 243 301 152 3311 1213 1113 24 555 501 431 3311 2213 1123 21 455 472 ·[·31 3322 3213 2233 31 21f4 333 lt31 3333 3323 3333 l;.l 130 13!, 1;.32 168' 3333 3323 3333 61 000 005 !:.33 160 3J33 3333 33JJ 71 000 006 !~34 170 3311 1213 1113 33 122 171 /132 1 ..., ' ~I l JJll 2213 1123 31 222 202 '•32 172 3322 3213 2233 31 221 173 l;J2 173 3333 3323 3333 lfl 010 03!. 433 17 t, 3333 3323 3333 61 000 005 434 175 3311 1213 1113 33 233 271 432 176 3311 2213 1123 31 233 272 !;32 177 3322 3213 2233 31 022 133 !;32 173 3333 3323 3333 l;1 210 lOt, !133 179 3333 3323 3333 61 000 005 434 180 3333 3337 3333 82 000 001 054 181 2312 1313 1113 24 666 601 371 182 3333 333& 3333· 42 030 101 323 183,3333 3313 3121 24 666 601 201 1.34 3333 3313 ..,..,,I") .J.J.J.(.. l~2 OJO 101 152 185 3333 3331 3333 83 000 007 DOl; 186 3333 3.337 3333 82 000 001 054 187 3333 3337 3333 82 000 001 OS!~ 188 3333 3326 3223 72. 032 171 373 189 3311 1313 1113 24 666 601 431 190 3311 23t3 1123 ?1 _ .... 566 572 /~31 191 3322 3313 2233 31 354 !~OJ lr31 192 3333 3323 3333" 41 2!10 204 432 193 3333 3323 3333 61 000 005 !;33 . 19!;. 3333 3333 3333 71 000 006 37!;. 401 3333 3335 3333 l1Z 030 101 373 402 3333 3313 3333 31 244 331 101 lf03 3333 3337 3333 82 000 001 00!;. /~04 3333 3337 3333 82 000 002 004 405 3333 3337 3333 81 000 001 00!~ ~~as 3333 3337 3333 81 000 002 004 407 3333 3337 3333 82 000 001 054 '•03 3333 3323 3113 42 000 001 492 409 3333 3336 3333 62 020 071 374 410 1111 1213 1113 33 132 201 431 411 1111 2213 1123 31 132 202 431 412 2222 3213 2233 31 121 133 lf31 413 3333 3323 3333 41 010 034 432 414 3333 3323 3333 ll-1 010 034 432 415 3333 3323 3333 61 000 005 433 416 3333 3333 3333 71 000 orv vO 43l; 417 3333 3333 3333 71 000 006 434 413 3333 3337 3333 81 021 102 493 419 3333 3336 3333 52 010 032 003 420 3333 3336 3333 52 010 033 OO.J 421 3333 3326 3333 '•2 010 032 493 422 3333 3336 3333 l;2 030 101 323 423 3333 3336 3333 42 030 102 .323 424 3333 3337 3333 82 000 001 054 425 3333 3337 3333 82 000 002 OSL, !;2.t) 3:133 33 "j/ 3333 72 000 001 054 427 3333 33Jl 3333 72 000 002 054 423 3333 3326 3323 52 010 031 1;93 :. ?q ..,_~ 3333 332;) 3333 '•2 010 031 '•33 !;30 3333 3337 3333 82 000 001 054 431. 3333 3337 3333 82 000 001 054 1;]2 JJ33 3313 3121 24 666 . 601 201 !rJ3 3333 3"?r:; ..J--3223 72 032 171 373 l;3l• 3311 1313 1111 21 !~65 501 201 !;35 3312 1116 1.1.13 33-142 231 1;33 436 3312 1116 1113 42 132 201 493 437 3333 3326 3233 l;2 030 101 433 438 3333 3326 3233 42 030 102 1;33 !;39 3322 3213 2233.-61 030 103 371 440 3333 3323 33.33 61 030 10l~ 372 441 3333 3333 3333 71 000 005 373 l;l;2 3333 3333 3333-71 000 006 374 4!•3 3333 3.233 3333 81 000 003 /;94 44!; 3333 3233 3333 81 000 005 49!; 4!;5 3333 ....,_...,'l .)LJ.J 3333 81 000 007 '•94 446 3333 3233 3333 81 000 006 '•94 L,47 3333 _3233 3333 81 . 000 003 l;94 l;!;8 3333 3233 3333 81 000 006 !;9!; '· t.a 3333 3336 3333 83 000 007 OOl; -r-:-,; l;.50 3333 3323 3121 !~2 000 001 104 L;Sl 3311 1213 1113 2l~ 555 501 431 ·-,.., L, ::u. 3311 22lJ 1123 ._21 l;55 472 l~J1 453 3"""? .JL-3213 2233 31 244 333 L;3l L~st~ 3333 3323 3333 41 130 134 '· 'J 'J "T..J .. t,ss 3333 3323 3333 61 000 005 433 456 3333 333J 3333 7l 000 006 l;J4 457 3311 1213 1113 33 233 271 492 !:58 3333 3337 3333 82 000 001 054 459 3311 1213 1113 33 233 271 432 460 3311 2"1" LJ...) 1123 31 233 272 432 451 3322 3213 2233 31 022 133 432 !,.62 3333 3313 3121 33 243 301 152 463 3311 1213 1113 Z4 556 531 431 464 3333 ":("l~':1 -..JJ..J 3U.l 22 462 401 492 ·-.. ·-. _, 465 J333 3333 3333 83 000 004 ·494 466 1311 2213 1123 21 465 502 L;J1 '·67 3333 3337 3333 82 000 001 004 468 J333 3336 3333 52 OlO 031 OOJ 459 2312 l3l3 1113 2l~ 666 601 371 l•70 3333 3333 3333 83 000 003 494 l, 71 3311 1"11"' ..__..) 1113 24 565 531 l;31 472 3311 ??1" ___ _) 1123 21 '•65 502 431 473 3322 2213 2223 31 354 403 431 474 3311 2213 1123 61 Ol;O 132 371 !.,75 3312 1116 1113 33 142 232 l;33 476 3312 1116 1113 33 142 233 433 !;77 3333 3337 3333 82 000 003 ost, '•781 3333 33LG 3333 '•2 010 OJ:l 1;93 l;/9 JJJJ 3331 3333 71 000 005 28!; !;80 1311 J.?.l3 1113 2!; 666 60l /131 4f.njJJ33 3233 3333 81 000 007 !;911 482 3311 2333 1113 51 030 102 1;3!; I 8.., IJ..., .,.., 3233 3333 81 000 COLI 1r94 "I ..) .J..l.J l;:3.'r 3322 3333 2233 51 030 103 43!; l1BS 3333 3333 3333 51 030 104 l;J!; '•86 3333 3336 3333 52 010 034 003 1;87 3311 2213 1123 21 .455 472 431 488 3322 3213 2233 31 244 333 1r31 439 3333 3313 3332 42 030 101 152 490 3333 3336 3333 72 000 001 244 491 1111 2213 1123 31 132 202 lr31 '•92 3333 3337 .... ,r'\ .... ..)..).)..) 82 000 001 004 493 3311 1213 1113 ·-· 33 122 171 !;32 '•94 1111 1213 1113 33 132 201 /;31 495 1111 1213 1113 33 132 201 l;Jl '•96 3311 2313 1123 21 566 572 l;31 497 3322 3313 2233 31 354 lr03 '•31 1,9s 3333 3336 3333 ~? ::J-.010 033 003 '•99 3333 3233 3333 81 000 006 !,9!; 500 3333 3333 3333 71 000 007 !;31; 501 3333 3326 3233 lr2 020 073 433 502 3333" 3336 3333 52 010 036 003 503 3333 3326 3333 /~2 010 031 l;33 504 1311 2213 1123 31 232 232. 372 505 3333 3336 3333 83 000 007 004 506 3333 3333 3333 73 000 007 494 507 3333 3323 3333 61 000 005 lf33 508 3J33 3323 3333. 61 000 005 433 509 3333 3331 3333 83 000 007 00{; 510 3311 2213 1123 63 040 131 371 511 3333 3331 3333 71 000 007 284 512 3333 3333 3333 71 040 132 lr9l 513 3333 3333 3333 71 040 . 133 491 514 3333 3333 3333 71 040 134 t,n 515 3333 ~~ ......... 3333 71 040 135 '•91 ..)..).)...) 516 3333 3333 3333 71 040 136 !~91 517 3333 3333 3333 71 040 137 '•91 518 3333 3333 3333 71 040 131 491 519 3333 3336 3333 72 000 003 21;4 520 3333 3333 3333 71 040 134 1,91 521 2312 2313 1123 21 /f65 502 371 522 3333 3313 3333 7l 000 005 1,33 523 3333 3336 3333 72 000 002 2l;4 524 3222 2313 2233 71 030 103 l;32 525 3333 3323 3333 63 000 005 37l~ 526 1311 1213 1123 l;3 020 071 372 527 3333 3326 3233 62 030 103 1;93 523 3333 3326 3233 62 030 102 1;93 529 3333 3233 3333 81. 000 007 l;9!; 530}3322 :nLJ 2233 Gl OJO 103 371 t'"") lj J"'"l"J JJ26 ""! ?"') "'J 62 030 101 1;.93 :.J -· ..) ··'. ..) ·-J J 532 3311 1 ?" •. 111.3 21 140 171 l;92 53;1 3~11 ~ L _1 l2lJ 1113 21 v.o 172 l;.92 53'•13.Jll 12l3 1ll3 21 140 173 /f92 535 3333 3336 3333 '•2 030 103 323 t'"'J 01''3"3 3233 3333 81 000 OOL• '•94 .:.>...~:.> ..) 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