IDENTIFIERS

  • Current Taxon Name (Soil Name): Ethridge
  • OSD
  • Series Extent
  • User Site ID: S2006MT033001
  • User Pedon ID: S2006MT033001
  • Vegetation Plot ID: S2006MT033001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0152
  • NCSS Pedon Lab Data NASIS Record ID - 19613
  • Print Date: 6/1/2024

    • 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: 47.5220375
  • Std. Longitude: -107.1273499
  • Datum: WGS84
  • State: Montana
  • County: MT033—Garfield
  • MLRA: 58A—Northern Rolling High Plains, Northern Part
  • Non-MLRA Soil Survey Area: MT033—Garfield County, Montana

    • PEDON

  • Describers Name: G. Snell
  • Current Taxonomic Class: Fine, smectitic, frigid Torrertic Argiustolls
  • Current Taxon Kind: series
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Ethridge
  • Taxonomic Class - Fine, smectitic, frigid Torrertic Argiustolls
  • PSC - 8 to 30 cm.
  • Classificaton Date - 10/3/2006
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Hill Slope Profile: toeslope
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Runoff: low
  • Drainage Class: well
  • Geology: Fort Union formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/3/2006 (actual site observation date)
  • Microrelief Kind: microhigh
  • Surface Cover Properties:
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 18
  • Site Erosion Accelerated: water erosion sheet
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    STCO

    AGSM

    BOGR

    ARTR

    EULA5

    ARFR

    FEOC

    POSA

    ARDR4

    AGCR

    Stachys coccinea

    Agropyron smithii

    Boerhavia gracillima

    Arisaema triphyllum

    Eurotia lanata

    Arenaria franklinii

    Festuca occidentalis

    Poa saltuensis

    Artemisia dracunculus

    Agropyron cristatum

    scarlet hedgenettle

    —

    slimstalk spiderling

    Jack in the pulpit

    —

    Franklin's sandwort

    western fescue

    oldpasture bluegrass

    tarragon

    crested wheatgrass

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

    argillic horizon

    mollic epipedon

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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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    45

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    2121

    Jordan

    SCAN
    A—0 to 8 centimeters (0.0 to 3.1 inches);, very dark grayish brown (10YR 3/2), moist; silt loam; 20 percent clay; moderate fine granular structure; soft, friable, slightly sticky, moderately plastic; 3.0 very fine roots; fragments; clear smooth boundary. Lab sample # 08N01025
    Bt—8 to 30 centimeters (3.1 to 11.8 inches);, very dark grayish brown (10YR 3/2), moist; silty clay loam; 36 percent clay; strong medium prismatic structure; hard, firm, moderately sticky, moderately plastic; 2.0 very fine roots and 2.0 fine roots; fragments; clear smooth boundary. Lab sample # 08N01026
    Bk1—30 to 41 centimeters (11.8 to 16.1 inches);, very dark grayish brown (10YR 3/2), moist; silty clay loam; 31 percent clay; weak medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 2.0 very fine roots and 2.0 fine roots; fragments; gradual wavy boundary. Lab sample # 08N01027. Alluvial event?
    Bk2—41 to 64 centimeters (16.1 to 25.2 inches);, very dark gray (10YR 3/1), moist; silty clay loam; 38 percent clay; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 1.0 very fine roots; fragments; clear wavy boundary. Lab sample # 08N01028
    Bk3—64 to 104 centimeters (25.2 to 40.9 inches);, very dark grayish brown (10YR 3/2), moist; silty clay loam; 36 percent clay; weak medium prismatic structure; hard, friable, moderately sticky, moderately plastic; fragments; clear smooth boundary. Lab sample # 08N01029
    By1—104 to 132 centimeters (40.9 to 52.0 inches);, dark grayish brown (10YR 4/2), moist; silty clay; 42 percent clay; weak coarse prismatic structure; very hard, very friable, very sticky, very plastic; fragments; gradual wavy boundary. Lab sample # 08N01030. Alluvial event?
    By2—132 to 160 centimeters (52.0 to 63.0 inches); silt; 25 percent clay; weak coarse prismatic structure; slightly hard, friable, nonsticky, nonplastic; fragments; gradual wavy boundary.
    C—160 to 262 centimeters (63.0 to 103.1 inches); soft, friable, nonsticky, nonplastic; fragments. Texture for this horizon is soft rock.