IDENTIFIERS

  • Current Taxon Name (Soil Name): Ermont
  • OSD
  • Series Extent
  • User Site ID: S2003MT612005
  • User Pedon ID: 03MT001011
  • Vegetation Plot ID: S2003MT612005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 03N1018
  • NCSS Pedon Lab Data NASIS Record ID - 16124
  • 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: 45.2333336
  • Std. Longitude: -112.9138870
  • Datum: WGS84
  • Township: 7S
  • Range: 11W
  • Section: 11
  • PLSS Details: 2600 feet E and 700 feet N of SW corner
  • State: Montana
  • County: MT001—Beaverhead
  • MLRA: 43B—Central Rocky Mountains
  • Non-MLRA Soil Survey Area: MT612—Horse Prairie-South Valley Area - Part of Beaverhead County, Montana

    • PEDON

  • Describers Name: OSD
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive Lithic Haplocryalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 11
  • Sampled As Information:
  • Soil Name - Ermont
  • Taxonomic Class - Loamy-skeletal, mixed, superactive Lithic Haplocryalfs
  • PSC - 10 to 48 cm.
  • Classificaton Date - 9/27/2004
  • Moisture Class - ustic
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from tuff and/or residuum weathered from tuff
  • Landscape: foothills
  • Landform: hill
  • Drainage Class: well
  • Bedrock: tuff, unspecified at 48cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/27/2004 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    FEID

    KOMA

    PSSP6

    Festuca idahoensis

    Koeleria macrantha

    Pseudoroegneria spicata

    Idaho fescue

    prairie Junegrass

    bluebunch wheatgrass

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

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    48 -

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    lithic contact

    0—10

    10—38

    48—

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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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    406

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    3

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    A—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; gravelly loam; weak fine granular structure; soft, very friable, slightly sticky, nonplastic; 10.0 very fine roots and 10.0 medium roots and 10.0 fine roots and 10.0 coarse roots; 5 percent by volume 76-?-250 millimeter unspecified fragments and 20 percent by volume 2-?-75 millimeter unspecified fragments; neutral, pH 7.2; clear smooth boundary. Lab sample # 03N05180
    Bt1—10 to 25 centimeters (3.9 to 9.8 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; very gravelly loam; moderate coarse subangular blocky, and moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 10.0 medium roots and 10.0 fine roots; 70 percent distinct clay films on rock fragments and 70 percent distinct clay films on all faces of peds; 35 percent by volume 2-?-75 millimeter unspecified fragments; neutral, pH 7.0; clear wavy boundary. Lab sample # 03N05181
    Bt2—25 to 38 centimeters (9.8 to 15.0 inches); brown (10YR 5/3), pale brown (10YR 6/3), dry; very gravelly loam; weak coarse subangular blocky, and weak medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 4.0 medium roots and 4.0 fine roots; 70 percent faint clay films on all faces of peds; 45 percent by volume 2-?-75 millimeter unspecified fragments; neutral, pH 7.0; clear wavy boundary. Lab sample # 03N05182
    BC—38 to 48 centimeters (15.0 to 18.9 inches); brown (10YR 5/3), pale brown (10YR 6/3), dry; extremely gravelly loam; structureless massive; soft, very friable, nonsticky, nonplastic; 0.5 fine roots; 65 percent by volume 2-?-75 millimeter unspecified fragments; neutral, pH 7.0; clear irregular boundary. Lab sample # 03N05183
    R—48 centimeters (18.9 inches); bedrock; 0.5 fine roots in cracks; fragments.