IDENTIFIERS

  • Current Taxon Name (Soil Name): Millboro
  • OSD
  • Series Extent
  • User Site ID: S1971SD123003
  • User Pedon ID: S1971SD123003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2510
  • NCSS Pedon Lab Data NASIS Record ID - 37206
  • Print Date: 4/24/2025

    • 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: 43.4449997
  • Std. Longitude: -100.0172195
  • Datum: WGS84
  • Township: 100N
  • Range: 78W
  • Section: 25
  • PLSS Details: 240 feet north and 2555 feet west of SE corner
  • State: South Dakota
  • County: SD123—Tripp
  • MLRA: 63A—Northern Rolling Pierre Shale Plains
  • Non-MLRA Soil Survey Area: SD123—Tripp County, South Dakota

    • PEDON

  • Describers Name: P. R. Johnson and R. F. Springer
  • Current Taxonomic Class: Fine, montmorillonitic, mesic Vertic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Millboro
  • PSC - 18 to 48 cm.
  • Classificaton Date - 11/30/2007
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - MILLBORO
  • Classificaton Date - 6/1/1971
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1971 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    —

    —

    —

    —

    0

    508

    —

    —

    8.9

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    AP—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2), moist; silty clay; weak medium and coarse subangular blocky structure; hard when dry, firm, moderately sticky, moderately plastic; fragments; neutral, pH 7.0, unspecified; abrupt smooth boundary. Lab sample # 40A19707
    A12—13 to 18 centimeters (5.1 to 7.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silty clay; weak medium and coarse subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; slightly alkaline, pH 7.6, unspecified; clear smooth boundary. Lab sample # 40A19708
    B21T—18 to 32 centimeters (7.1 to 12.6 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay; moderate medium and coarse prismatic parts to moderate very fine and fine subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; neutral, pH 7.0, unspecified; clear smooth boundary. Lab sample # 40A19709
    B22T—32 to 48 centimeters (12.6 to 18.9 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; clay; moderate medium prismatic parts to moderate very fine and fine subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; fragments; strong effervescence; slightly alkaline, pH 7.6, unspecified; clear smooth boundary. Lab sample # 40A19710
    B32—48 to 71 centimeters (18.9 to 28.0 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay; weak coarse prismatic parts to moderate medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; clear smooth boundary. Lab sample # 40A19711
    B32CA—71 to 92 centimeters (28.0 to 36.2 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay; moderate medium and coarse angular blocky structure; extremely hard, very firm, very sticky, very plastic; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; clear wavy boundary. Lab sample # 40A19712
    C1—92 to 109 centimeters (36.2 to 42.9 inches); grayish brown (2.5Y 5/2), dark grayish brown (2.5Y 4/2), moist; silty clay; massive; very hard, very firm, very sticky, very plastic; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; gradual wavy boundary. Lab sample # 40A19713
    C2SA—109 to 142 centimeters (42.9 to 55.9 inches); light yellowish brown (2.5Y 6/3), light olive brown (2.5Y 5/4), moist; silty clay; massive; hard when dry, firm, moderately sticky, moderately plastic; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified; gradual wavy boundary. Lab sample # 40A19714
    C3—142 to 188 centimeters (55.9 to 74.0 inches); light yellowish brown (2.5Y 6/3), light olive brown (2.5Y 5/4), moist; silty clay; massive; hard when dry, firm, moderately sticky, moderately plastic; fragments; strong effervescence; moderately alkaline, pH 8.2, unspecified. Lab sample # 40A19715