IDENTIFIERS

  • Current Taxon Name (Soil Name): Catlin
  • OSD
  • Series Extent
  • User Site ID: 1967IL041001
  • User Pedon ID: 1967IL041001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • 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: 39.8652139
  • Std. Longitude: -87.9657722
  • Datum: WGS84
  • Township: 16N
  • Range: 14W
  • Section: 5
  • PLSS Details: 2,690' East and 15' North of the SW corner
  • Map Unit: 171B—Catlin silt loam, 2 to 5 percent slopes
  • State: Illinois
  • County: IL041—Douglas
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-AUR—Aurora, Illinois
  • Non-MLRA Soil Survey Area: IL041—Douglas County, Illinois
  • 7.5 Minute USGS Quad: 39087-G8—Newman, Illinois

    • PEDON

  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Oxyaquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Catlin
  • PSC - 30 to 80 cm.
  • Classificaton Date - 6/6/2013
  • Classifier - S. Smith
  • Sampled As Information:
  • Soil Name - Catlin
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Typic Argiudolls
  • Taxon Kind - series
  • Classificaton Date - 4/6/1967
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess over loamy till
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/6/1967 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    3

    —

    —

    219

    —

    1030

    —

    173

    12.1

    —

    —

    —

    —

    —

    —

    —

    118684

    Tuscola, IL

    —
    A—0 to 23 centimeters (0.0 to 9.1 inches); very dark gray (10YR 3/1), gray (10YR 5/1), dry; silt loam; moderate fine granular structure; friable; many fine roots; fragments; slightly acid, pH 6.3; clear smooth boundary.
    AB—23 to 30 centimeters (9.1 to 11.8 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate medium granular structure; friable; many fine roots; fragments; moderately acid, pH 6.0; clear smooth boundary.
    Bt1—30 to 38 centimeters (11.8 to 15.0 inches); brown (10YR 4/3) silty clay loam; moderate very fine subangular blocky structure; friable; common fine roots; 10 percent distinct very dark gray (10YR 3/1) organoargillans on all faces of peds; fragments; moderately acid, pH 5.8; clear smooth boundary.
    Bt2—38 to 53 centimeters (15.0 to 20.9 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate fine subangular blocky structure; firm; few fine roots; 10 percent distinct brown (10YR 4/3) clay films on all faces of peds; fragments; moderately acid, pH 5.8; clear smooth boundary.
    Bt3—53 to 69 centimeters (20.9 to 27.2 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate medium subangular blocky structure; firm; few fine roots; 30 percent distinct brown (10YR 4/3) clay films on all faces of peds; fragments; moderately acid, pH 5.7; gradual smooth boundary.
    Bt4—69 to 97 centimeters (27.2 to 38.2 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky, and weak coarse angular blocky parts to weak medium angular blocky structure; firm; few fine roots; 30 percent distinct brown (10YR 4/3) clay films on all faces of peds; 1 percent very weakly coherent cemented iron-manganese concretions and 10 percent medium distinct grayish brown (10YR 5/2) iron depletions; fragments; moderately acid, pH 5.7; clear smooth boundary.
    Bt5—97 to 107 centimeters (38.2 to 42.1 inches); yellowish brown (10YR 5/4) silty clay loam; weak coarse subangular blocky structure; firm; 10 percent distinct brown (10YR 4/3) clay films on all faces of peds; 1 percent very weakly coherent cemented iron-manganese concretions and 10 percent medium distinct light olive brown (2.5Y 5/6) masses of oxidized iron; fragments; neutral, pH 6.6; clear smooth boundary.
    2BCt—107 to 132 centimeters (42.1 to 52.0 inches); yellowish brown (10YR 5/4) silty clay loam; weak coarse subangular blocky structure; firm; 10 percent distinct very dark grayish brown (10YR 3/2) clay films on all faces of peds; 1 percent very weakly coherent cemented iron-manganese concretions and 10 percent fine distinct light olive brown (2.5Y 5/6) masses of oxidized iron; 1 percent by volume rounded ? to 20-? millimeter mixed fragments; neutral, pH 6.8; clear smooth boundary.
    2C—132 to 152 centimeters (52.0 to 59.8 inches); 50 percent grayish brown (10YR 5/2) and 50 percent light olive brown (2.5Y 5/4) silt loam; structureless massive; friable; 1 percent by volume rounded ? to 20-? millimeter mixed fragments; slight effervescence; slightly alkaline, pH 7.4.