IDENTIFIERS

  • Current Taxon Name (Soil Name): Thibadeau
  • OSD
  • Series Extent
  • User Site ID: S1991MT041007
  • User Pedon ID: 91MT041007
  • Vegetation Plot ID: S1991MT041007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P1132
  • NCSS Pedon Lab Data NASIS Record ID - 64168
  • Print Date: 4/24/2025

    • 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: 48.7944450
  • Std. Longitude: -110.1347198
  • Datum: WGS84
  • Township: 35N
  • Range: 12E
  • Section: 11
  • PLSS Details: 1600 feet N and 600 feet E of SW corner
  • Location Description: Map 47.
  • State: Montana
  • County: MT041—Hill
  • MLRA: 52—Brown Glaciated Plains
  • Non-MLRA Soil Survey Area: MT041—Hill County, Montana

    • PEDON

  • Current Taxonomic Class: Fine-loamy, mixed, superactive, calcareous, frigid Aridic Ustifluvents
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Correlated Information:
  • Soil Name - Thibadeau
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Havre
  • Taxonomic Class - Fine-loamy, mixed (calcareous), frigid Ustic Torri
  • Taxon Kind - series
  • Classificaton Date - 8/27/1991
  • Moisture Class - aridic (torric)
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: flood plain
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/27/1991 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    DISP

    SPAI

    Distichlis spicata

    Sporobolus airoides

    saltgrass

    alkali sacaton

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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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    789

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    A—0 to 5 centimeters (0.0 to 2.0 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay loam; weak very fine granular structure; soft, very friable, moderately sticky, moderately plastic; 21.0 very fine roots; 5.0 very fine pores; fragments; strongly alkaline, pH 8.8, hellige-truog; clear smooth boundary. Lab sample # 91P07615
    C1—5 to 36 centimeters (2.0 to 14.2 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay loam; massive; soft, very friable, moderately sticky, moderately plastic; 21.0 very fine roots; 5.0 very fine pores; fragments; strongly alkaline, pH 8.6, hellige-truog; clear wavy boundary. Lab sample # 91P07616
    C2—36 to 66 centimeters (14.2 to 26.0 inches); light olive brown (2.5Y 5/4), dark grayish brown (2.5Y 4/2), moist; clay loam; massive; slightly hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots; 5.0 very fine pores; fragments; strongly alkaline, pH 8.8, hellige-truog; clear wavy boundary. Lab sample # 91P07617
    C3—66 to 86 centimeters (26.0 to 33.9 inches); light olive brown (2.5Y 5/4), olive brown (2.5Y 4/4), moist; loam, fine sandy loam; massive; hard, friable, moderately sticky, moderately plastic; 5.0 very fine roots; 5.0 very fine pores; fragments; very strongly alkaline, pH 9.6, hellige-truog; gradual wavy boundary. Lab sample # 91P07618
    C4—86 to 152 centimeters (33.9 to 59.8 inches); olive brown (2.5Y 4/4), very dark grayish brown (2.5Y 3/2), moist; clay loam, loam, fine sandy loam; massive; hard, friable, moderately sticky, moderately plastic; 1.0 very fine roots; 5.0 very fine pores; fragments; very strongly alkaline, pH 9.6, hellige-truog. Lab sample # 91P07619