IDENTIFIERS

  • Current Taxon Name (Soil Name): Arahustan
  • OSD
  • Series Extent
  • User Site ID: S2011WA041508
  • User Pedon ID: S2011WA041508
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 13N0616
  • NCSS Pedon Lab Data NASIS Record ID - 72962
  • Print Date: 12/4/2024

    • 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: 46.7360510
  • Std. Longitude: -121.5895100
  • Datum: WGS84
  • Township: 14 N
  • Range: 10 E
  • Section: 5
  • PLSS Details: 480m south and 220m east of NW corner
  • Location Description: On saddle of Cowlitz Divide along abandoned trail due west of Ohanpecosh Campground.
  • State: Washington
  • County: WA041—Lewis
  • MLRA: 3—Olympic and Cascade Mountains
  • Non-MLRA Soil Survey Area: WA754—Mount Rainier National Park, Washington
  • 7.5 Minute USGS Quad: 46121-F5—Ohanapecosh Hot Springs, Washington

    • PEDON

  • Describers Name: Toby Rodgers
  • Current Taxonomic Class: Ashy, glassy Andic Haplocryods
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Arahustan
  • PSC - 32 to 72 cm.
  • Classificaton Date - 12/4/2014
  • Classifier - Toby Rodgers
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Andic Haplocryod
  • Taxonomic Class - Ashy, amorphic Andic Haplocryods
  • Taxon Kind - taxon above family
  • PSC - 32 to 72 cm.
  • Classificaton Date - 11/16/2012
  • Classifier - Toby Rodgers
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash over colluvium derived from andesite
  • Landscape: mountains
  • Landform: saddle
  • Geomorphic Component Mountains: mountainflank
  • Hill Slope Profile: footslope
  • Slope Position: middle third
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: indurated slight weathered andesite at 72cm with 45 to <100
  • Geology: Ohanapecosh formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/14/2011 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - native shrubs
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - rain
  • Current Air Temp - 8
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    indurated

    72 - 150

    - 78 -

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

    andic soil properties

    albic horizon

    spodic horizon

    lithic contact

    7—72

    7—16

    16—72

    72—150

    —65—

    —9—

    —56—

    —78—
    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

    30

    —

    —

    1256

    —

    260

    1956

    —

    60

    6.1

    —

    —

    5

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; 80 percent sand; 19 percent silt; 1 percent clay; many (8.0) fine high-continuity interstitial pores; fragments; clear smooth boundary.; dry when described; observed in pit, small. Thin discontinuous tephra between Oi and Oe horizons, likely Mt. St. Helens 1980 tephra.
    Oe—2 to 7 centimeters (0.8 to 2.8 inches); moderately decomposed plant material; 80 percent sand; 19 percent silt; 1 percent clay; common (3.0) very fine roots throughout and few (0.8) medium roots throughout and few (0.8) fine roots throughout; many (8.0) fine moderate-continuity interstitial pores; fragments; abrupt wavy boundary.; moist when described; observed in pit, small
    E—7 to 16 centimeters (2.8 to 6.3 inches); dark gray (10YR 4/1) crushed, gray (10YR 6/1) crushed, dry; ashy loamy sand; 80 percent sand; 19 percent silt; 1 percent clay; structureless single grain; loose, loose, nonsticky, nonplastic; few (0.8) very fine roots throughout and few (0.8) medium roots throughout and few (0.8) fine roots throughout and few (0.8) coarse roots throughout; common (3.0) very fine low-continuity interstitial and common (3.0) fine low-continuity interstitial pores; fragments; clear irregular boundary. Lab sample # 13N02931; moist when described; observed in pit, small. Horizon likely Mt. St. Helens Wn tephra.
    Bs1—16 to 27 centimeters (6.3 to 10.6 inches); 80 percent dark yellowish brown (10YR 3/4) crushed and 20 percent dark brown (7.5YR 3/3) crushed, yellowish brown (10YR 5/4) crushed, dry; ashy sandy loam; 65 percent sand; 31 percent silt; 4 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; few (0.8) very fine roots throughout and few (0.8) fine roots throughout; common (3.0) very fine low-continuity irregular and common (3.0) fine low-continuity irregular pores; 5 percent by volume nonflat subrounded moderately coherent cemented 2-4-5 millimeter pumice fragments; clear wavy boundary. Lab sample # 13N02932; moist when described; observed in pit, small
    Bs2—27 to 61 centimeters (10.6 to 24.0 inches); dark brown (10YR 3/3) crushed, yellowish brown (10YR 5/4) crushed, dry; ashy sandy loam; 60 percent sand; 36 percent silt; 4 percent clay; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; few (0.8) very fine roots throughout and few (0.8) fine roots throughout; common (3.0) very fine moderate-continuity irregular and common (3.0) fine moderate-continuity irregular pores; 5 percent by volume nonflat subrounded moderately coherent cemented 5-51-75 millimeter pumice fragments and 5 percent by volume nonflat subrounded moderately coherent cemented 2-4-5 millimeter pumice fragments; clear wavy boundary. Lab sample # 13N02933; moist when described; observed in pit, small
    Bs3—61 to 72 centimeters (24.0 to 28.3 inches); dark brown (10YR 3/3) crushed, brown (10YR 5/3) crushed, dry; ashy sandy loam; 65 percent sand; 31 percent silt; 4 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; common (3.0) very fine moderate-continuity irregular and common (3.0) fine moderate-continuity irregular pores; 5 percent by volume nonflat subangular indurated 2-4-5 millimeter andesite fragments; abrupt wavy boundary. Lab sample # 13N02934; moist when described; observed in pit, small
    2R—72 to 150 centimeters (28.3 to 59.1 inches); unweathered bedrock; fragments.; observed in pit, small