IDENTIFIERS

  • Current Taxon Name (Soil Name): Sweetgrass
  • OSD
  • Series Extent
  • User Site ID: S1955MT095002
  • User Pedon ID: S1955MT095002
  • Vegetation Plot ID: S1955MT095002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3547
  • NCSS Pedon Lab Data NASIS Record ID - 39212
  • Print Date: 11/27/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 45.4866676
  • Std. Longitude: -109.4400024
  • Datum: WGS84
  • Township: 4S
  • Range: 18E
  • Section: 13
  • PLSS Details: SE, SE, NE
  • Location Description: 2.5 miles south of Absarokee
  • State: Montana
  • County: MT095—Stillwater
  • Non-MLRA Soil Survey Area: MT655—Stillwater County Area, Montana

    • PEDON

  • Describers Name: W. C. Bourne
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Sweetgrass
  • Classificaton Date - 8/30/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/30/1955 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    PASM

    Pascopyrum smithii

    western wheatgrass

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    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    1

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    45

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    Ap—0 to 10 centimeters (0.0 to 3.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; clay loam; moderate medium platy structure; hard, friable, slightly sticky, slightly plastic; fragments; clear boundary. Lab sample # 40A27365
    B21t—10 to 23 centimeters (3.9 to 9.1 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; clay loam; moderate medium prismatic parts to strong fine subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; clay films; fragments; clear boundary. Lab sample # 40A27366. The peds have strong clay skins; the crushed color is slightly lighter than given.
    B22t—23 to 38 centimeters (9.1 to 15.0 inches); dark brown (10YR 3/3), brown (10YR 4/3), dry; clay loam; moderate medium prismatic parts to strong fine subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; clay films; fragments; abrupt boundary. Lab sample # 40A27367. Strong clay skins on peds; crushed color is slightly lighter than given.
    C1ca—38 to 64 centimeters (15.0 to 25.2 inches); light gray (10YR 7/2), white (10YR 8/1), dry; gravelly loam; massive; 40 percent by volume 2-39-75 millimeter unspecified fragments; clear boundary. Lab sample # 40A27368. Weakly stratified with an abundance of lime.
    IIC2ca—64 to 86 centimeters (25.2 to 33.9 inches); 2-39-75 millimeter unspecified fragments and 85 percent by volume 250-425-600 millimeter unspecified fragments; diffuse boundary. Lab sample # 40A27369. Lime and fine earth surround the cobbles.
    IIC3—86 to 112 centimeters (33.9 to 44.1 inches); fragments; strong effervescence. Lab sample # 40A27370. Sand and gravel from strongly weathered granitic cobbles and gravel.