Soil Survey of Anchorage Area, Alaska - Home | NRCS Survey of Anchorage Area, Alaska. 3 How To Use This Soil Survey Detailed Soil Maps The detailed soil maps can be useful in planning

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  • United StatesDepartment ofAgriculture

    Natural ResourcesConservationService

    In cooperation with theAnchorage Soil andWater ConservationDistrict; Chugach StatePark; Cook InletRegion Inc.; EklutnaInc.; Municipality ofAnchorage; U.S.Department of theInterior, Bureau ofLand Management;University of AlaskaFairbanks, Agriculturaland ForestryExperiment Station;U.S. Department of theArmy; and the U.S. AirForce

    Soil Survey ofAnchorage Area,Alaska

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    How To Use This Soil Survey

    Detailed Soil Maps

    The detailed soil maps can be useful in planning the use andmanagement of small areas.

    To find information about your areaof interest, locate that area on theIndex to Map Sheets. Note thenumber of the map sheet and turnto that sheet.

    Locate your area of interest onthe map sheet. Note the map unitsymbols that are in that area. Turnto the Contents, which lists themap units by symbol and nameand shows the page where eachmap unit is described.

    The Contents shows which tablehas data on a specific land use foreach detailed soil map unit. Alsosee the Contents for sections ofthis publication that may addressyour specific needs.

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    This soil survey is a publication of the National Cooperative Soil Survey, a joint effort ofthe United States Department of Agriculture and other Federal agencies, State agenciesincluding the Agricultural and Forestry Experiment Station, and local agencies. TheNatural Resources Conservation Service (formerly the Soil Conservation Service) hasleadership for the Federal part of the National Cooperative Soil Survey. Major fieldwork for this soil survey was completed in 2000. Soil names and descriptionswere approved in 2001. Unless otherwise indicated, statements in this publication refer toconditions in the survey area in 2001. This survey was made cooperatively by the NaturalResources Conservation Service; the Anchorage Soil and Water Conservation District;Chugach State Park; Cook Inlet Region Inc.; Eklutna Inc.; Municipality of Anchorage;U.S. Department of the Interior, Bureau of Land Management; University of AlaskaFairbanks, Agricultural and Forestry Experiment Station; U.S. Department of the Army;and the U.S. Air Force. This survey is part of the technical assistance furnished throughthe Anchorage Soil and Water Conservation District. Soil maps in this survey may be copied without permission. Enlargement of thesemaps, however, could cause misunderstanding of the detail of mapping. If enlarged,maps do not show the small areas of contrasting soils that could have been shown at alarger scale. The United States Department of Agriculture (USDA) prohibits discrimination in all of itsprograms and activities on the basis of race, color, national origin, sex, religion, age,disability, political beliefs, sexual orientation, and marital or family status. (Not allprohibited bases apply to all programs.) Persons with disabilities who require alternativemeans for communication of program information (Braille, large print, audio tape, etc.)should contact the USDAs TARGET Center at 202-720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room326-W, Whitten Building, 1400 Independence Avenue, SW, Washington, D.C., 20250-9410, or call 202-720-5964 (voice and TDD). USDA is an equal opportunity provider andemployer.

    Cover: The city of Anchorage, Alaska surrounded by the Cook Inlet and theChugach Mountains. Typic Cryaquents soils occur on the vegetated tidal flats inthe foreground. Talkeetna, Chugach, and Deneka soils, and rock outcrop occur onthe Chugach Mountains in the background.

    Additional information about the nations natural resources is available on theNatural Resources Conservation Service home page on the World Wide Web.The address is http://www.nrcs.usda.gov.

    htp://www.nrcs.usda.gov

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    ContentsHow To Use This Soil Survey .............................. 3Foreword................................................................ 8General Nature of the Survey Area ...................... 11

    Landforms and Geologic Deposits .................. 11Water Resources............................................. 12Native Vegetation ............................................ 12Climate............................................................. 12

    How This Survey Was Made ................................ 13Detailed Soil Map Units ...................................... 15

    400Anchorpark loamy very fine sand, 30to 85 percent slopes ................................ 16

    401Andic Humicryods-Rock outcropassociation, 25 to 85 percent slopes ....... 16

    402Clam Gulch silt loam, 0 to 7 percentslopes ...................................................... 17

    403Clam Gulch-Doroshin-Jacobsencomplex, 0 to 15 percent slopes.............. 17

    404Cryosaprists, 0 to 1 percent slopes........ 19405Cryorthents, silty, 5 to 65 percent

    slopes ...................................................... 19406Cryorthents and Urban land, 0 to 5

    percent slopes ......................................... 19407Cryorthents and Urban land, 5 to 20

    percent slopes ......................................... 20408Deception-Cryorthents complex, 45

    to 90 percent slopes ................................ 20409Deception-Disappear complex,

    undulating and hilly.................................. 21410Deception-Estelle-Kichatna complex,

    0 to 7 percent slopes ............................... 22411Deception-Estelle-Kichatna complex,

    12 to 20 percent slopes ........................... 23412Deception-Estelle-Kichatna complex,

    20 to 45 percent slopes ........................... 24413Deception-Estelle-Kichatna complex,

    45 to 85 percent slopes ........................... 26414Deception-Estelle-Kichatna complex,

    undulating and hilly.................................. 27415Deception-Estelle-Kichatna complex,

    undulating and steep ............................... 28416Disappear-Pioneer Peak complex, 0

    to 7 percent slopes .................................. 29417Doroshin peat, 0 to 7 percent slopes ..... 30418Dumps, landfill........................................ 31

    419Eklutna very cobbly sand, 0 to 3percent slopes ......................................... 31

    420Haplocryods, 20 to 50 percent slopes.... 31421Histic Cryaquepts, 0 to 15 percent

    slopes ...................................................... 32422Histic Cryaquepts-Hurdygurdy

    association, 3 to 25 percent slopes ......... 32423Hurdygurdy-Siwash-Rock outcrop

    association, 10 to 70 percent slopes ....... 33424Icknuun peat, 0 to 3 percent slopes....... 34425Jacobsen-Disappear-Doroshin

    complex, 0 to 3 percent slopes................ 34426Jacobsen-Disappear-Doroshin

    complex, 3 to 7 percent slopes................ 36427Jacobsen-Disappear-Doroshin

    complex, 7 to 12 percent slopes.............. 37428Kashwitna-Kichatna complex, 0 to 3

    percent slopes ......................................... 38429Kashwitna-Kichatna complex, 12 to

    20 percent slopes .................................... 39430Kashwitna-Kichatna complex, 30 to

    85 percent slopes .................................... 40431Kashwitna-Kichatna complex,

    undulating ................................................ 41432Kashwitna-Kichatna complex,

    undulating and hilly.................................. 42433Kashwitna-Kichatna complex,

    undulating and steep ............................... 46434Kichatna-Pioneer Peak-Jacobsen

    complex, 0 to 15 percent slopes.............. 47435Matsu silt loam, 0 to 3 percent slopes.... 48436Matsu silt loam, 3 to 7 percent slopes.... 48437Moose River-Niklason complex,

    frequently flooded, 0 to 3 percentslopes ...................................................... 49

    438Moose River-Niklason complex,occasionally flooded, 0 to 3 percentslopes ...................................................... 50

    439Nakochna-Rock outcrop association,20 to 85 percent slopes ........................... 51

    440Pioneer Peak silt loam, 0 to 3percent slopes ......................................... 51

    441Pioneer Peak silt loam, 3 to 7percent slopes ......................................... 52

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    442Pioneer Peak-Jacobsen-Doroshincomplex, 12 to 20 percent slopes ............52

    443Pits, gravel..............................................54444Riverwash and Niklavar soils, 0 to 2

    percent slopes..........................................54445Rock outcrop ..........................................54446Salamatof peat, 0 to 3 percent slopes....55447Smithfha loamy very fine sand, 0 to 3

    percent slopes..........................................55448Smithfha loamy very fine sand, 3 to 7

    percent slopes..........................................56449Smithfha loamy very fine sand, 30 to

    45 percent slopes.....................................56450Smithfha loamy very fine sand,

    undulating and steep................................57451Smithfha-Anchorpark complex,

    undulating and hilly ..................................57452Susitna silt loam, 0 to 2 percent

    slopes.......................................................58453Susivar and Niklavar fine sandy

    loams........................................................59454Susivar-Moose River complex, 0 to 2

    percent slopes..........................................59455Talkeetna-Chugach-Deneka

    complex, 12 to 20 percent slopes ............60456Talkeetna-Chugach-Deneka

    complex, 20 to 45 percent slopes ............61457Talkeetna-Chugach-Deneka

    complex, 45 to 85 percent slopes ............62458Talkeetna-Chugach-Deneka

    complex, undulating and hilly...................64459Talkeetna-Chugach-Histic

    Cryaquepts association, 10 to 70percent slopes.....