IDENTIFIERS

  • Current Taxon Name (Soil Name): Combest
  • OSD
  • Series Extent
  • User Site ID: S1991MT089015
  • User Pedon ID: 91MT089015
  • Vegetation Plot ID: S1991MT089015
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0860
  • NCSS Pedon Lab Data NASIS Record ID - 63898
  • Print Date: 9/24/2024

    • 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: 47.4594460
  • Std. Longitude: -115.0291672
  • Datum: WGS84
  • Township: 20N
  • Range: 27W
  • Section: 27
  • PLSS Details: 1400 feet N and 400 feet E of the SW corner
  • Location Description: Arvilla Ridge.
  • State: Montana
  • County: MT089—Sanders

    • PEDON

  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 15
  • Sampled As Information:
  • Soil Name - Combest
  • Taxonomic Class - Loamy-skeletal, mixed Andic Ustochrepts
  • Classificaton Date - 6/1/1991
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1991 (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

    LAOC

    PIPO

    PSME

    Larix occidentalis

    Pinus ponderosa

    Pseudotsuga menziesii

    western larch

    ponderosa pine

    Douglas-fir

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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

    30

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    1219

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    270

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    O—0 to 5 centimeters (0.0 to 2.0 inches); fragments. Lab sample # 91P05195. forest litter
    A—5 to 10 centimeters (2.0 to 3.9 inches); very dark brown (10YR 2/2), very dark grayish brown (10YR 3/2), dry; gravelly silt loam; weak fine granular structure; soft, very friable, nonsticky, slightly plastic; fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # 91P05196
    Bs—10 to 28 centimeters (3.9 to 11.0 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; gravelly silt loam; weak fine granular structure; soft, very friable, nonsticky, slightly plastic; 20 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog; clear wavy boundary. Lab sample # 91P05197
    2E1—28 to 61 centimeters (11.0 to 24.0 inches); grayish brown (10YR 5/2), light gray (10YR 7/2), dry; very gravelly sandy loam; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 5 percent by volume 75-162-250 millimeter unspecified fragments and 45 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.2, hellige-truog; gradual wavy boundary. Lab sample # 91P05198
    2E2—61 to 91 centimeters (24.0 to 35.8 inches); grayish brown (10YR 5/2), light gray (10YR 7/2), dry; extremely gravelly sandy loam; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 15 percent by volume 75-162-250 millimeter unspecified fragments and 65 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.2, hellige-truog; gradual wavy boundary. Lab sample # 91P05199
    2E/Bw—91 to 157 centimeters (35.8 to 61.8 inches); grayish brown (10YR 5/2), 20 percent pale brown (10YR 6/3) and 80 percent light gray (10YR 7/2), dry; extremely gravelly sandy loam; massive; soft, very friable, nonsticky, nonplastic; 25 percent by volume 75-162-250 millimeter unspecified fragments and 40 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 6.0, hellige-truog. Lab sample # 91P05200