IDENTIFIERS

  • Current Taxon Name (Soil Name): Wyant
  • OSD
  • Series Extent
  • User Site ID: S1984WA015008
  • User Pedon ID: 84WA015008
  • Vegetation Plot ID: S1984WA015008
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 84P0914
  • NCSS Pedon Lab Data NASIS Record ID - 55702
  • Print Date: 11/14/2025

    • 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: 46.2936096
  • Std. Longitude: -123.5988922
  • Datum: WGS84
  • State: Washington
  • County: WA015—Cowlitz
  • MLRA: 2—Willamette and Puget Sound Valleys

    • PEDON

  • Describers Name: R. J. Engel, R. F. Pringle, and W. D. Nettleton
  • Current Taxonomic Class: Fine, smectitic, mesic Ultic Argixerolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 8
  • Correlated Information:
  • Soil Name - Wyant
  • PSC - 30 to 80 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Wyant
  • Taxonomic Class - Fine-loamy, mixed, mesic Ultic Haploxeralf
  • Taxon Kind - series
  • Classificaton Date - 9/1/1984
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: hills
  • Landform: upland slope
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Shape Down: convex
  • Runoff: low
  • Drainage Class: well
  • Flooding: frequent flooding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1984 (actual site observation date)
  • Microrelief Elevation: 35
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ALRU2

    PSME

    TSHE

    Alnus rubra

    Pseudotsuga menziesii

    Tsuga heterophylla

    red alder

    Douglas-fir

    western hemlock

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    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

    10

    —

    —

    439

    —

    0

    178

    —

    —

    10

    16

    4

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    1A1—0 to 10 centimeters (0.0 to 3.9 inches);, 90 percent very dark brown (10YR 2/2) exterior and very dark brown (10YR 2/2) crushed and 10 percent gray (10YR 5/1) exterior, moist; silt loam; weak medium subangular blocky, and moderate fine granular structure; friable, slightly sticky, slightly plastic; 5.5 fine to coarse roots throughout; 5.0 fine and medium vesicular and tubular pores; fragments; abrupt smooth boundary. Lab sample # 84P05169. 10YR 5/1 1980 St. Helens Volcanic ash mixed in horizon.; many fine to coarse roots throughout
    1A2—10 to 30 centimeters (3.9 to 11.8 inches);, very dark grayish brown (10YR 3/2) interior and very dark grayish brown (10YR 3/2) exterior and very dark grayish brown (10YR 3/2) crushed, moist; silt loam; weak medium subangular blocky, and moderate fine granular structure; friable, slightly sticky, slightly plastic; 5.0 fine to coarse roots throughout; 5.0 fine and medium vesicular and tubular pores; fragments; clear smooth boundary. Lab sample # 84P05170. common to many fine to coarse roots throughout
    1Bt1—30 to 48 centimeters (11.8 to 18.9 inches);, very dark grayish brown (10YR 3/2) exterior and dark brown (10YR 3/3) interior and dark brown (10YR 3/3) crushed, moist; silty clay loam; weak medium subangular blocky, and strong fine subangular blocky structure; firm, moderately sticky, moderately plastic; 5.0 fine to coarse roots throughout; 1.0 fine and medium vesicular and tubular pores; 55 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on faces of peds; 5 percent by volume 2-39-75 millimeter pyroclastic, unspecified fragments; clear smooth boundary. Lab sample # 84P05171. many clay films surface features on faces of peds; common to many fine to coarse roots throughout; discontinuous - phpvsfiid 230386; discontinuous - phpvsfiid 230386
    1Bt2—48 to 65 centimeters (18.9 to 25.6 inches);, dark yellowish brown (10YR 4/4) exterior and yellowish brown (10YR 5/4) interior and yellowish brown (10YR 5/4) crushed, moist; silty clay loam; weak medium subangular blocky, and moderate fine subangular blocky structure; firm, moderately sticky, moderately plastic; 1.0 fine to coarse roots throughout; 1.0 fine and medium vesicular and tubular pores; 55 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments; clear smooth boundary. Lab sample # 84P05172. many clay films surface features on faces of peds; few to common fine to coarse roots throughout; discontinuous - phpvsfiid 230387; discontinuous - phpvsfiid 230387
    1BCt1—65 to 85 centimeters (25.6 to 33.5 inches);, brown (10YR 4/3) exterior and yellowish brown (10YR 5/4) interior and yellowish brown (10YR 5/4) crushed, moist; silty clay loam; moderate medium subangular blocky structure; firm, moderately sticky, moderately plastic; 0.2 fine to coarse roots throughout; 0.5 very fine and fine vesicular and tubular pores; 55 percent distinct black (N 2/0), moist, clay films on faces of peds and 55 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments. Lab sample # 84P05173. many clay films surface features on faces of peds; many clay films surface features on faces of peds; very few to few fine to coarse roots throughout; discontinuous - phpvsfiid 230388; discontinuous - phpvsfiid 230389; discontinuous - phpvsfiid 230388; discontinuous - phpvsfiid 230389
    BCt2—85 to 98 centimeters (33.5 to 38.6 inches);, brown (10YR 4/3) exterior and brown (10YR 5/3) interior and yellowish brown (10YR 5/6) crushed, moist; silty clay loam; 1 percent strong brown (7.5YR 5/6) medium prominent mottles; moderate medium subangular blocky structure; friable, moderately sticky, moderately plastic; 0.2 fine to coarse roots throughout; 0.5 very fine and fine vesicular and tubular pores; 55 percent distinct brown (10YR 4/3), moist, clay films on faces of peds; fragments; clear smooth boundary. Lab sample # 84P05174. many clay films surface features on faces of peds; very few to few fine to coarse roots throughout; few medium prominent 7.5YR56 mottles; discontinuous - phpvsfiid 230390; discontinuous - phpvsfiid 230390
    1CR—98 to 125 centimeters (38.6 to 49.2 inches);, 45 percent brown (10YR 5/3) exterior and 35 percent yellowish brown (10YR 5/4) exterior and 20 percent light yellowish brown (10YR 6/4) exterior, moist; unweathered bedrock; 15 percent distinct dark grayish brown (10YR 4/2), moist, clay films on lower surfaces of peds or rocks; fragments. Lab sample # 84P05175. Soft weathered tuff.; few clay films surface features on lower surfaces of peds or stones; patchy - phpvsfiid 230391; patchy - phpvsfiid 230391