IDENTIFIERS

  • Current Taxon Name (Soil Name): Sweetgrass
  • OSD
  • Series Extent
  • User Site ID: S1955MT095001
  • User Pedon ID: S1955MT095001
  • Vegetation Plot ID: S1955MT095001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3546
  • NCSS Pedon Lab Data NASIS Record ID - 39211
  • 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: 45.5046425
  • Std. Longitude: -109.4327240
  • Datum: WGS84
  • Township: 4S
  • Range: 19E
  • Section: 7
  • PLSS Details: SW, NE, NW
  • Location Description: 1 mile 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 #: 1
  • Sampled As Information:
  • Soil Name - Sweetgrass
  • Classificaton Date - 8/30/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: bench
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/30/1955 (actual site observation date)
  • Surface Cover Properties:
  • 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

    BOGR2

    KOELE

    POA

    Bouteloua gracilis

    Koeleria

    Poa

    blue grama

    Junegrass

    bluegrass

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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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    A1—0 to 8 centimeters (0.0 to 3.1 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 # 40A27358
    B21t—8 to 18 centimeters (3.1 to 7.1 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; clay loam; weak coarse prismatic parts to moderate medium and coarse angular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; clear boundary. Lab sample # 40A27359
    B22t—18 to 28 centimeters (7.1 to 11.0 inches); dark brown (10YR 3/3), brown (10YR 4/3), dry; clay loam; moderate medium prismatic parts to strong fine angular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; gradual boundary. Lab sample # 40A27360
    B23t—28 to 38 centimeters (11.0 to 15.0 inches); brown (10YR 4/3), yellowish brown (10YR 5/4), dry; clay loam; moderate medium prismatic parts to strong fine angular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; abrupt boundary. Lab sample # 40A27361
    C1ca—38 to 64 centimeters (15.0 to 25.2 inches); light gray (10YR 7/2), white (10YR 8/1), dry; gravelly loam; massive; 12 percent by volume 2-39-75 millimeter unspecified fragments and 12 percent by volume 75-162-250 millimeter unspecified fragments; clear boundary. Lab sample # 40A27362. weakly stratified with lime; heavy lime accumulation on gravel and cobbles; 10 to 15 percent gravel and cobbles.
    IIC2ca—64 to 97 centimeters (25.2 to 38.2 inches); Error; loose; fragments; strong effervescence; gradual boundary. Lab sample # 40A27363. very strongly calcareous with soft lime accumulations around gravel; pebbles and cobbles strongly undercoated with cemented sand grains.
    IIC3—97 to 122 centimeters (38.2 to 48.0 inches); fragments; strong effervescence. Lab sample # 40A27364. 15 to 25 percent cobble-size fragments strongly weathered mostly granitic with some lava and sedimentary rocks; lime coatings on underside of coarse gravel and cobbles; definitely below the lime horizon.