IDENTIFIERS

  • Current Taxon Name (Soil Name): Yamac
  • OSD
  • Series Extent
  • User Site ID: S1956MT111005
  • User Pedon ID: S1956MT111005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3520
  • NCSS Pedon Lab Data NASIS Record ID - 39185
  • Print Date: 11/23/2024

    • 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: 45.7396469
  • Std. Longitude: -108.6388092
  • Datum: WGS84
  • Township: 1S
  • Range: 25E
  • Section: 21
  • PLSS Details: 300 feet south and 185 feet west of northeast corner
  • State: Montana
  • County: MT111—Yellowstone
  • MLRA: 58A—Northern Rolling High Plains, Northern Part
  • Non-MLRA Soil Survey Area: MT111—Yellowstone County, Montana

    • PEDON

  • Describers Name: Dave R. Cawlfield
  • Current Taxonomic Class: Fine-loamy, mixed Borollic Camborthids
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Yamac
  • Classificaton Date - 7/23/2007
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Keiser
  • Classificaton Date - 9/26/1956
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/26/1956 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    975

    —

    0

    356

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 28 centimeters (0.0 to 11.0 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay loam; weak coarse subangular blocky, and moderate very fine granular structure; hard, friable, moderately sticky, moderately plastic; 21.0 roots; 3.0 coarse pores; clay films on faces of peds; fragments; slight effervescence; moderately alkaline, pH 8.2, unspecified; abrupt smooth boundary. Lab sample # 40A27178. Patchy clay skins on remnants of blocky structure from former B2.; patchy - phpvsfiid 187892; patchy - phpvsfiid 187892
    B2ca—28 to 43 centimeters (11.0 to 16.9 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; silty clay loam; moderate fine and medium angular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 21.0 fine roots; 21.0 fine and medium and 0.5 coarse pores; clay films; fragments; strong effervescence; moderately alkaline, pH 8.4, unspecified; clear irregular boundary. Lab sample # 40A27179. patchy - phpvsfiid 187893; patchy - phpvsfiid 187893
    B3ca—43 to 58 centimeters (16.9 to 22.8 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; silty clay; moderate fine and medium angular blocky structure; hard, friable, moderately sticky, moderately plastic; 21.0 roots; 21.0 very fine and fine and 0.5 coarse pores; clay films and 75 percent prominent white (2.5Y 8/1), dry,; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; diffuse boundary. Lab sample # 40A27180. Effervesces strongly to violently in white splotches.; patchy - phpvsfiid 187895; patchy - phpvsfiid 187895
    C1ca—58 to 74 centimeters (22.8 to 29.1 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; silty clay loam; weak medium and coarse angular blocky structure; friable, moderately sticky, moderately plastic; 0.5 roots; 0.5 very fine pores; 75 percent prominent white (2.5Y 8/1), dry,; fragments; violent effervescence; moderately alkaline, pH 8.3, unspecified; clear smooth boundary. Lab sample # 40A27181
    C2—74 to 99 centimeters (29.1 to 39.0 inches); light brownish gray (2.5Y 6/2), olive brown (2.5Y 4/3), moist; clay loam; weak medium angular blocky structure; firm, moderately sticky, moderately plastic; 0.5 roots; very fine and 0.5 fine to coarse pores; 10 percent distinct white (2.5Y 8/1), dry,; fragments; violent effervescence; strongly alkaline, pH 8.6, unspecified; diffuse boundary. Lab sample # 40A27182
    C3—99 to 135 centimeters (39.0 to 53.1 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; clay loam; massive; firm, moderately sticky, moderately plastic; 0.5 roots; 0.5 very fine and fine and 0.1 coarse pores; fragments; strong effervescence; moderately alkaline, pH 8.3, unspecified; clear irregular boundary. Lab sample # 40A27183
    C4—135 to 152 centimeters (53.1 to 59.8 inches); light brownish gray (2.5Y 6/2), dark grayish brown (2.5Y 4/2), moist; clay loam; massive; firm, moderately sticky, moderately plastic; 0.5 very fine and fine pores; fragments; strong effervescence; moderately alkaline, pH 8.4, unspecified. Lab sample # 40A27184