IDENTIFIERS

  • Current Taxon Name (Soil Name): Elloam
  • OSD
  • Series Extent
  • User Site ID: S1962MT005008
  • User Pedon ID: S1962MT005008
  • Vegetation Plot ID: S1962MT005008
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3334
  • NCSS Pedon Lab Data NASIS Record ID - 38449
  • Print Date: 2/16/2025

    • 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: 48.8271484
  • Std. Longitude: -109.2422104
  • Datum: WGS84
  • Township: 35N
  • Range: 19E
  • Section: 3
  • PLSS Details: 0.15 mile S and 200 feet E of W 1/4 Corner
  • State: Montana
  • County: MT005—Blaine
  • Non-MLRA Soil Survey Area: MT608—Blaine County and Part of Phillips County Area, Montana

    • PEDON

  • Describers Name: Grossman, Walker, Mogen, Moshier, Anderson and Nielson.
  • Current Taxonomic Class: Fine, smectitic, frigid Borollic Natrargids
  • Current Taxon Kind: series
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 8
  • Correlated Information:
  • Soil Name - Elloam
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Elloam
  • Classificaton Date - 8/28/1962
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: till plain
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/28/1962 (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

    PASM

    Bouteloua gracilis

    Pascopyrum smithii

    blue grama

    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

    —

    —

    —

    —

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    279

    —

    —

    6.7

    21.1

    -8.9

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    A2—0 to 6 centimeters (0.0 to 2.4 inches); light gray (10YR 7/2), dark grayish brown (10YR 4/2), moist; loam; massive; soft, very friable, slightly sticky, slightly plastic; fragments; noneffervescent; abrupt wavy boundary. Lab sample # 40A25969. Vesicular crust 1/2 inch thick on the surface with many very fine to very large vesicles in massive soil below.
    B21—6 to 10 centimeters (2.4 to 3.9 inches); very dark grayish brown (10YR 3/2), dark brown (10YR 3/3), moist; clay; strong fine columnar parts to moderate fine angular blocky structure; extremely hard, firm, very sticky, very plastic; 0.5 very fine pores; clay films on tops of soil columns and clay films on faces of peds; fragments; noneffervescent; clear irregular boundary. Lab sample # 40A25970. The caps 1/8 inches to 1/4 inch thick of the column is white when dry and pale brown when moist; sand and silt grains on the cap of the columns are clear and unstained.; continuous - phpvsfiid 184344; continuous - phpvsfiid 184345; continuous - phpvsfiid 184344; continuous - phpvsfiid 184345
    B22—10 to 18 centimeters (3.9 to 7.1 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), moist; clay; moderate medium prismatic parts to moderate fine and medium angular blocky structure; extremely hard, friable, very sticky, very plastic; dark grayish brown (10YR 4/2), moist, coats on faces of peds and clay films on faces of peds; fragments; noneffervescent; clear wavy boundary. Lab sample # 40A25971. continuous - phpvsfiid 184347; continuous - phpvsfiid 184347
    B31ca—18 to 30 centimeters (7.1 to 11.8 inches); light olive brown (2.5Y 5/3), dark grayish brown (2.5Y 4/2), moist; clay; moderate medium prismatic parts to moderate fine and medium angular blocky structure; extremely hard, friable, very sticky, very plastic; 3.0 fine pores; very dark grayish brown (2.5Y 3/2), moist, coats on faces of peds and clay films on upper surfaces of peds or rocks and clay films on lower surfaces of peds or rocks; 1 percent carbonate nodules; fragments; slight effervescence; clear wavy boundary. Lab sample # 40A25972. continuous - phpvsfiid 184349; patchy - phpvsfiid 184350; continuous - phpvsfiid 184349; patchy - phpvsfiid 184350
    IIB32ca—30 to 46 centimeters (11.8 to 18.1 inches); grayish brown (2.5Y 5/2), very dark grayish brown (2.5Y 3/2), moist; clay loam; strong medium prismatic parts to strong medium angular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; clay films on faces of peds; 3 percent carbonate nodules; fragments; slight effervescence; gradual wavy boundary. Lab sample # 40A25973. A few lignite chips; some drifts of clear unstained sand and silt on faces of peds; lime occurs as a film on the vertical faces of prisms and coating the under sides of gravel forming sockets in the soil.; patchy - phpvsfiid 184351; patchy - phpvsfiid 184351
    IIC1ca—46 to 76 centimeters (18.1 to 29.9 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay loam; moderate medium prismatic parts to strong medium angular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; very dark grayish brown (2.5Y 3/2), moist, coats on faces of peds and clay films on faces of peds; 3 percent carbonate nodules; fragments; slight effervescence; clear wavy boundary. Lab sample # 40A25974. Gravels nearly completely coated with lime, thicker on the lower and undersides and forming sockets in the soil.
    IIC2cs1—76 to 107 centimeters (29.9 to 42.1 inches); grayish brown (2.5Y 5/2), very dark grayish brown (2.5Y 3/2), moist; clay loam; weak very coarse prismatic parts to strong fine and medium angular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; 21 percent gypsum crystal clusters; fragments; slight effervescence; gradual wavy boundary. Lab sample # 40A25975. There are silt layers 1/2 to 1 inch thick occurring in this horizon.
    IIC2cs2—107 to 142 centimeters (42.1 to 55.9 inches); grayish brown (2.5Y 5/2), very dark grayish brown (2.5Y 3/2), moist; clay loam; weak very coarse platy parts to strong medium angular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; 21 percent light gray (5YR 7/1) gypsum crystal clusters; fragments; slight effervescence; gradual irregular boundary. Lab sample # 40A25976
    IIC31—142 to 168 centimeters (55.9 to 66.1 inches); grayish brown (2.5Y 5/2), very dark grayish brown (2.5Y 3/2), moist; clay loam; weak coarse platy structure; extremely hard, firm, moderately sticky, moderately plastic; fragments; slight effervescence. Lab sample # 40A25977. Reddish brown stains on blocks.
    IIC32—168 to 193 centimeters (66.1 to 76.0 inches); grayish brown (2.5Y 5/2), very dark grayish brown (2.5Y 3/2), moist; clay loam; weak coarse platy structure; extremely hard, firm, moderately sticky, moderately plastic; fragments; slight effervescence. Lab sample # 40A25978. Split for sampling purposes.