IDENTIFIERS

  • Current Taxon Name (Soil Name): courtois
  • OSD
  • Series Extent
  • User Site ID: 1981MO185006S
  • User Pedon ID: 1981MO185006S
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 82P0144
  • NCSS Pedon Lab Data NASIS Record ID - 50384
  • Print Date: 12/6/2025

    • 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: 37.9489441
  • Std. Longitude: -94.0396652
  • Datum: WGS84
  • Township: T37N
  • Range: R28W
  • Section: 29
  • PLSS Details: 390 meters E and 600 meters N of the SW corner
  • Location Description: Eldorado Springs, north Quad.
  • State: Missouri
  • County: MO185—St. Clair
  • MLRA: 116B—Springfield Plain
  • Non-MLRA Soil Survey Area: MO185—St. Clair County, Missouri

    • PEDON

  • Describers Name: D. Howard
  • Current Taxonomic Class: Fine, mixed, active, mesic Typic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 6
  • Correlated Information:
  • Soil Name - courtois
  • PSC - 15 to 65 cm.
  • Classificaton Date - 3/19/2021
  • Sampled As Information:
  • Soil Name - Peridge
  • Taxonomic Class - Fine-silty, mixed, thermic Typic Paleudalfs
  • Taxon Kind - series
  • PSC - 28 to 78 cm.
  • Classificaton Date - 6/1/1981
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1981 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—28

    28—134

    —-

    —-
    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

    4

    —

    —

    224

    —

    135

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3) silt loam; weak medium granular structure; very friable; 21.0 fine roots; fragments; clear smooth boundary. Lab sample # 82P00722
    BA—15 to 28 centimeters (5.9 to 11.0 inches); brown (7.5YR 4/4) loam; moderate medium subangular blocky structure; friable; 3.0 fine roots; fragments; clear smooth boundary. Lab sample # 82P00723
    Bt1—28 to 38 centimeters (11.0 to 15.0 inches); brown (7.5YR 4/4) clay; 3 percent reddish brown (5YR 4/4) medium distinct mottles; moderate medium subangular blocky structure; firm; 3.0 fine roots; 30 percent clay films; fragments; gradual smooth boundary. Lab sample # 82P00724
    Bt2—38 to 68 centimeters (15.0 to 26.8 inches); strong brown (7.5YR 5/6) clay; 3 percent dark red (2.5YR 3/6) medium distinct mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 0.5 fine roots; 30 percent clay films; 1 percent iron concretions; fragments; gradual smooth boundary. Lab sample # 82P00725
    Bt3—68 to 80 centimeters (26.8 to 31.5 inches); strong brown (7.5YR 5/6) clay; 3 percent brown (10YR 5/3) medium distinct and 3 percent dark red (2.5YR 3/6) fine prominent mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 0.5 fine roots; 30 percent clay films; fragments; gradual smooth boundary. Lab sample # 82P00726
    Bt4—80 to 108 centimeters (31.5 to 42.5 inches); yellowish brown (10YR 5/8) clay; 1 percent dark red (2.5YR 3/6) fine prominent and 21 percent brown (10YR 5/3) medium prominent mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 0.5 fine roots; 30 percent clay films; 3 percent iron concretions; fragments; gradual smooth boundary. Lab sample # 82P00727
    Bt5—108 to 134 centimeters (42.5 to 52.8 inches); yellowish brown (10YR 5/6) silty clay; 3 percent grayish brown (10YR 5/2) medium distinct and 3 percent yellowish red (5YR 4/6) medium distinct mottles; weak medium prismatic parts to moderate medium subangular blocky structure; firm; 0.5 fine roots; 10 percent clay films; 3 percent iron concretions; fragments; gradual smooth boundary. Lab sample # 82P00728
    BC—134 to 178 centimeters (52.8 to 70.1 inches); yellowish brown (10YR 5/6) silty clay; 3 percent light brownish gray (10YR 6/2) fine prominent and 3 percent yellowish red (5YR 4/6) medium distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 10 percent clay films; 21 percent iron concretions; fragments. Lab sample # 82P00729