IDENTIFIERS

  • Current Taxon Name (Soil Name): Agar
  • OSD
  • Series Extent
  • User Site ID: S1954SD107001
  • User Pedon ID: S1954SD107001
  • Vegetation Plot ID: S1954SD107001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2349
  • NCSS Pedon Lab Data NASIS Record ID - 37046
  • Print Date: 2/16/2025

    • 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: 44.9869461
  • Std. Longitude: -100.0816650
  • Datum: WGS84
  • Township: 118N
  • Range: 77W
  • Section: 36
  • PLSS Details: 15/100 mile N, 270 feet E of SW corner
  • Map Unit: HbA—Highmore silt loam, 0 to 2 percent slopesHbA—Highmore silt loam, 0 to 2 percent slopes
  • Country: US—United States
  • State: South Dakota
  • County: SD107—Potter
  • MLRA: 53C—Southern Dark Brown Glaciated Plains
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-RED—Redfield, South Dakota
  • Non-MLRA Soil Survey Area: SD107—Potter County, South Dakota

    • PEDON

  • Describers Name: C. A. Mogen
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Typic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Copy of S1954SD107001-KSSL Pedon (Rec ID - 105724)
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Agar
  • PSC - 20 to 38 cm.
  • Classificaton Date - 12/6/2022
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Agar
  • Classificaton Date - 6/29/1954
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 2
  • QA Status: not reviewed


    • SITE

  • Parent Material: loess
  • Landscape: till plain
  • Landform: plain
  • Geomorphic Component Flats: rise
  • Hill Slope Profile: backslope
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/29/1954 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BOGR2

    CAREX

    KOELE

    PASM

    Bouteloua gracilis

    Carex

    Koeleria

    Pascopyrum smithii

    blue grama

    sedge

    Junegrass

    western wheatgrass

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

    mollic epipedon

    argillic horizon

    secondary carbonates

    0—38

    20—38

    38—112

    —38—

    —18—

    —74—
    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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    315

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    A—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2), moist; silt loam; moderate very fine granular structure; soft, very friable; fragments; clear boundary. Lab sample # 40A18408
    AB—10 to 20 centimeters (3.9 to 7.9 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2) and very dark grayish brown (10YR 3/2) crushed, moist; silt loam; weak medium prismatic parts to moderate fine angular blocky structure; very hard, very friable; fragments; clear boundary. Lab sample # 40A18409
    Bt—20 to 38 centimeters (7.9 to 15.0 inches); brown (10YR 5/3), very dark grayish brown (10YR 3/2) and dark grayish brown (10YR 4/2) and brown (10YR 5/3) crushed, moist; silt loam; moderate fine and medium prismatic parts to fine and medium subangular blocky parts to very fine angular blocky structure; hard, friable; 30 percent clay films on faces of peds; fragments; clear wavy boundary. Lab sample # 40A18410. patchy - phpvsfiid 195576; patchy - phpvsfiid 195576
    Bk1—38 to 51 centimeters (15.0 to 20.1 inches); light brownish gray (2.5Y 6/2), light olive brown (2.5Y 5/3), moist; silt loam; moderate medium prismatic parts to subangular blocky structure; very hard, very friable; 1 percent carbonate concretions and 1 percent carbonate threads; fragments; strong effervescence; gradual boundary. Lab sample # 40A18411. Lime in seams.
    Bk2—51 to 79 centimeters (20.1 to 31.1 inches); light brownish gray (2.5Y 6/2) and pale yellow (2.5Y 8/2), light olive brown (2.5Y 5/3), moist; silt loam; moderate medium prismatic parts to moderate medium angular blocky structure; very hard, very friable; 3 percent noncoherent cemented carbonate concretions and 3 percent carbonate threads; fragments; strong effervescence; gradual boundary. Lab sample # 40A18412
    Bk3—79 to 112 centimeters (31.1 to 44.1 inches); light brownish gray (2.5Y 6/2) and pale yellow (2.5Y 8/2), grayish brown (2.5Y 5/2), moist; silt loam; weak coarse prismatic parts to medium angular blocky structure; very hard, very friable; 3 percent carbonate concretions; fragments; strong effervescence; clear boundary. Lab sample # 40A18413
    C—112 to 157 centimeters (44.1 to 61.8 inches); light brownish gray (2.5Y 6/2), grayish brown (2.5Y 5/2), moist; silt loam; structureless massive; very hard, very friable; 1 percent carbonate threads; fragments; strong effervescence. Lab sample # 40A18414