IDENTIFIERS

  • Current Taxon Name (Soil Name): Mobridge
  • OSD
  • Series Extent
  • User Site ID: S2014SD129005
  • User Pedon ID: S2014SD129005A
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 15N0420
  • NCSS Pedon Lab Data NASIS Record ID - 79586
  • 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: 45.3426719
  • Std. Longitude: -99.9914766
  • Datum: WGS84
  • Township: 122N
  • Range: 76W
  • Section: 35
  • PLSS Details: NW 1/4
  • Map Unit: C453A—Mobridge silt loam, cool, 0 to 2 percent slopes
  • State: South Dakota
  • County: SD129—Walworth
  • MLRA: 53B—Central Dark Brown Glaciated Plains
  • Non-MLRA Soil Survey Area: SD129—Walworth County, South Dakota
  • 7.5 Minute USGS Quad: 45099-C8—Lowry, South Dakota

    • PEDON

  • Describers Name: A. Oxford
  • Current Taxonomic Class: Coarse-silty, mixed, superactive, frigid Pachic Argiustolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Mobridge
  • Taxonomic Class - Coarse-silty, mixed, superactive, frigid Pachic Argiustolls
  • Taxon Kind - taxadjunct
  • PSC - 23 to 73 cm.
  • Classificaton Date - 11/6/2014
  • Classifier - A. Oxford
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: local silty alluvium
  • Landscape: upland
  • Landform: till plain
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: footslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no
  • RaCA Information:
  • Plot Baseline Length - 27

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/29/2014 (actual site observation 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    secondary carbonates

    0—54

    23—74

    74—150

    —54—

    —51—

    —76—
    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

    2

    —

    —

    —

    —

    60

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 2 centimeters (0.0 to 0.8 inches);, very dark gray (10YR 3/1), moist; silt loam; weak very fine granular structure; slightly hard, friable, nonsticky, nonplastic; common (5.0) very fine roots throughout and few (1.0) medium roots throughout and common (2.0) fine roots throughout; fragments; noneffervescent, by hcl, 1n. Lab sample # 15N02157; observed in push tube
    A1—2 to 6 centimeters (0.8 to 2.4 inches);, very dark gray (10YR 3/1), moist; silt loam; weak very fine granular structure; slightly hard, friable, nonsticky, nonplastic; common (5.0) very fine roots throughout and few (1.0) medium roots throughout and common (2.0) fine roots throughout; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 15N02158; observed in push tube
    A2—6 to 23 centimeters (2.4 to 9.1 inches);, black (10YR 2/1), moist; silt loam; moderate fine subangular blocky parts to moderate fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; common (4.0) very fine roots throughout and few (1.0) medium roots throughout and common (3.0) fine roots throughout; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # 15N02159; observed in push tube
    Bt1—23 to 54 centimeters (9.1 to 21.3 inches);, very dark grayish brown (10YR 3/2), moist; clay loam; weak medium prismatic parts to moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; common (3.0) very fine roots throughout and few (1.0) fine roots throughout; 5 percent clay films; fragments; noneffervescent, by hcl, 1n; clear wavy boundary. Lab sample # 15N02160; observed in push tube
    Bt2—54 to 74 centimeters (21.3 to 29.1 inches);, olive brown (2.5Y 4/3), moist; clay loam; moderate medium prismatic structure; slightly hard, friable, slightly sticky, moderately plastic; common (2.0) very fine roots throughout and few (1.0) medium roots throughout and few (1.0) fine roots throughout; 5 percent clay films; fragments; noneffervescent, by hcl, 1n; clear wavy boundary. Lab sample # 15N02161; observed in push tube
    Bk1—74 to 98 centimeters (29.1 to 38.6 inches);, olive brown (2.5Y 4/3), moist; sandy clay loam; moderate medium prismatic structure; slightly hard, friable, slightly sticky, slightly plastic; few (1.0) very fine roots throughout and few (1.0) fine roots throughout; 1 percent fine faint irregular weakly coherent cemented carbonate masses with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 15N02162; observed in push tube
    Bk2—98 to 131 centimeters (38.6 to 51.6 inches);, light yellowish brown (2.5Y 6/3), moist; clay loam; weak coarse angular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; few (1.0) very fine roots throughout and few (1.0) fine roots throughout; 1 percent medium prominent irregular weakly coherent cemented strong brown (7.5YR 5/6), moist, masses of oxidized iron with clear boundaries in matrix; 12 percent coarse prominent irregular weakly coherent cemented carbonate masses with sharp boundaries in matrix and 3 percent fine distinct irregular weakly coherent cemented carbonate masses with clear boundaries in matrix; 1 percent by volume nonflat subangular indurated 2-3-5 millimeter mixed fragments observed by visual inspection method and 1 percent by volume nonflat subangular indurated 5-10-15 millimeter mixed fragments observed by visual inspection method; strong effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 15N02163; observed in push tube
    Bk3—131 to 150 centimeters (51.6 to 59.1 inches);, light olive brown (2.5Y 5/3), moist; sandy loam; weak coarse angular blocky structure; slightly hard, friable, nonsticky, nonplastic; few (1.0) very fine roots throughout; 2 percent fine faint irregular weakly coherent cemented carbonate masses with clear boundaries in matrix; fragments; strong effervescence, by hcl, 1n. Lab sample # 15N02164; observed in push tube