IDENTIFIERS

  • Current Taxon Name (Soil Name): Evanston
  • OSD
  • Series Extent
  • User Site ID: S1987MT101003
  • User Pedon ID: 87MT101003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 88P0351
  • NCSS Pedon Lab Data NASIS Record ID - 60469
  • Print Date: 11/21/2024

    • 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: 48.5827789
  • Std. Longitude: -111.9969406
  • Datum: WGS84
  • Township: 33N
  • Range: 3W
  • Section: 34
  • PLSS Details: 50 feet E and 1580 feet S of NW corner
  • State: Montana
  • County: MT101—Toole
  • MLRA: 52—Brown Glaciated Plains

    • PEDON

  • Current Taxonomic Class: Fine-loamy, mixed, superactive Aridic Argiborolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Evanston
  • Classificaton Date - 7/11/2007
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Evanston
  • Taxonomic Class - Fine-loamy, mixed Aridic Argiboroll
  • Taxon Kind - series
  • Classificaton Date - 11/1/1987
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: alluvial fan
  • Slope Shape Down: concave
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1987 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    —

    —

    1052

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    0

    —

    —

    —

    —

    —

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    1Ap—0 to 15 centimeters (0.0 to 5.9 inches); very dark grayish brown (10YR 3/2) interior, grayish brown (10YR 5/2) interior, dry; loam; moderate fine granular structure; soft, very friable, slightly sticky, nonplastic; 5.5 fine roots; 5.5 fine continuous tubular pores; fragments; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 88P01773. many fine roots
    1Bt1—1 to 41 centimeters (0.4 to 16.1 inches); dark brown (10YR 3/3) interior, brown (10YR 5/3) interior, dry; clay loam; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 5.5 fine roots; 2.5 very fine continuous tubular pores; 15 percent faint clay films on faces of peds; fragments; neutral, pH 7.2, hellige-truog; gradual wavy boundary. Lab sample # 88P01774. few clay films surface features on faces of peds; many fine roots
    1Bt2—41 to 64 centimeters (16.1 to 25.2 inches); brown (10YR 4/3) interior, brown (10YR 5/3) interior, dry; clay loam; moderate medium prismatic, and moderate medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 5.5 fine roots; 2.5 very fine continuous tubular pores; 37 percent distinct dark grayish brown (10YR 4/2) clay films on faces of peds; fragments; slightly alkaline, pH 7.6, hellige-truog; gradual wavy boundary. Lab sample # 88P01775. common clay films surface features on faces of peds; many fine roots
    1Bt3—64 to 74 centimeters (25.2 to 29.1 inches); brown (10YR 5/3) interior, pale brown (10YR 6/3) interior, dry; loam; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; 5.5 very fine roots; 2.5 very fine discontinuous tubular pores; 15 percent faint clay films between sand grains; fragments; slightly alkaline, pH 7.8, hellige-truog; gradual wavy boundary. Lab sample # 88P01776. few clay films surface features between sand grains; many very fine roots
    1Bk—71 to 107 centimeters (28.0 to 42.1 inches); brown (10YR 5/3) interior, pale brown (10YR 6/3) interior, dry; loam; weak medium subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; 0.5 very fine roots; 2.5 very fine discontinuous tubular pores; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; gradual wavy boundary. Lab sample # 88P01777. few very fine roots
    1C—107 to 152 centimeters (42.1 to 59.8 inches); grayish brown (10YR 5/2) interior, light brownish gray (10YR 6/2) interior, dry; loam; massive; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots; 0.5 very fine discontinuous tubular pores; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog. few very fine roots