IDENTIFIERS

  • Current Taxon Name (Soil Name): Unicornpeak
  • OSD
  • Series Extent
  • User Site ID: S2011WA053514
  • User Pedon ID: S2011WA053514
  • Vegetation Plot ID: S2011WA053514
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 13N0629
  • NCSS Pedon Lab Data NASIS Record ID - 73189
  • Print Date: 6/2/2024

    • 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: 46.8636110
  • Std. Longitude: -121.5330840
  • Datum: WGS84
  • Township: 16 N
  • Range: 10 E
  • Section: 22
  • PLSS Details: 740m south and 290m west of NE corner
  • Location Description: Mount Rainier National Park, just off Highway 123 1/4 mile south of Cayuse Pass.
  • State: Washington
  • County: WA053—Pierce
  • MLRA: 3—Olympic and Cascade Mountains
  • Non-MLRA Soil Survey Area: WA754—Mount Rainier National Park, Washington
  • 7.5 Minute USGS Quad: 46121-G5—Chinook Pass, Washington

    • PEDON

  • Describers Name: Toby Rodgers
  • Current Taxonomic Class: Medial, amorphic Aquandic Haplocryods
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Unicornpeak
  • PSC - 28 to 86 cm.
  • Classificaton Date - 12/5/2014
  • Classifier - Toby Rodgers
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Andic Humicryod
  • Taxonomic Class - Medial over loamy, amorphic over isotic Andic Humicryods
  • Taxon Kind - taxon above family
  • PSC - 28 to 86 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 basal till
  • Landscape: mountains
  • Landform: cirque floor
  • Geomorphic Component Mountains: mountainflank
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: indurated at 86cm with 45 to <100
  • Geology: Ohanapecosh formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/28/2011 (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 - partly cloudy
  • Current Air Temp - 9
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABAM

    TSME

    VAME

    RULA2

    ERMO8

    Abies amabilis

    Tsuga mertensiana

    Vaccinium membranaceum

    Rubus lasiococcus

    Erythronium montanum

    Pacific silver fir

    mountain hemlock

    thinleaf huckleberry

    roughfruit berry

    white avalanche-lily

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    indurated

    86 - 150

    - 64 -

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

    andic soil properties

    albic horizon

    spodic horizon

    lithic contact

    3—70

    3—12

    12—70

    86—150

    —66—

    —9—

    —58—

    —64—
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    9/28/2011

    9/28/2011

    15

    50

    —

    —

    5.1

    4.7
    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

    35

    —

    —

    1366

    —

    220

    1905

    —

    60

    3.9

    —

    —

    3

    —

    —

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    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; 75 percent sand; 23 percent silt; 2 percent clay; many (8.0) fine high-continuity interstitial pores; fragments; abrupt smooth boundary.; dry when described; observed in pit, small. Thin discontinuous tephra between Oi and Oe horizons, likely Mt. St. Helens 1980 tephra.
    Oe—1 to 3 centimeters (0.4 to 1.2 inches); moderately decomposed plant material; 75 percent sand; 23 percent silt; 2 percent clay; few (0.8) very fine roots throughout; many (8.0) fine moderate-continuity interstitial pores; fragments; abrupt wavy boundary.; moist when described; observed in pit, small
    E1—3 to 7 centimeters (1.2 to 2.8 inches); very dark gray (7.5YR 3/1) crushed, dark gray (7.5YR 4/1) crushed, dry; medial loamy sand; 75 percent sand; 23 percent silt; 2 percent clay; weak fine subangular blocky structure; soft, very friable, 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; abrupt wavy boundary. Lab sample # 13N02972; moist when described; observed in pit, small. Horizon likely Mt. St. Helens Wn tephra.
    E2—7 to 12 centimeters (2.8 to 4.7 inches); dark gray (7.5YR 4/1) crushed, gray (7.5YR 6/1) crushed, dry; medial loamy sand; 75 percent sand; 23 percent silt; 2 percent clay; weak fine subangular blocky structure; soft, very friable, 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; 5 percent by volume nonflat subrounded moderately coherent cemented 2-4-5 millimeter pumice fragments; clear irregular boundary. Lab sample # 13N02973; moist when described; observed in pit, small. Horizon likely Mt. St. Helens Wn tephra.
    Bs1—12 to 36 centimeters (4.7 to 14.2 inches); 80 percent dark brown (7.5YR 3/2) crushed and 20 percent dark brown (7.5YR 3/4) crushed, brown (7.5YR 5/4) crushed, dry; paragravelly medial sandy loam; 70 percent sand; 27 percent silt; 3 percent clay; moderate medium subangular blocky structure; soft, very friable, 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 moderate-continuity irregular and common (3.0) fine moderate-continuity irregular pores; 5 percent by volume nonflat subrounded moderately coherent cemented 2-4-5 millimeter pumice fragments and 15 percent by volume nonflat subrounded moderately coherent cemented 5-41-75 millimeter pumice fragments; gradual irregular boundary. Lab sample # 13N02974; moist when described; observed in pit, small
    Bs2—36 to 53 centimeters (14.2 to 20.9 inches); 80 percent dark brown (7.5YR 3/2) crushed and 20 percent dark brown (7.5YR 3/4) crushed, brown (7.5YR 5/4) crushed, dry; medial sandy loam; 70 percent sand; 25 percent silt; 5 percent clay; moderate coarse subangular blocky structure; soft, very friable, nonsticky, nonplastic; few (0.8) very fine roots throughout and few (0.8) medium 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 2-4-5 millimeter pumice fragments; gradual irregular boundary. Lab sample # 13N02975; moist when described; observed in pit, small
    Bs3—53 to 70 centimeters (20.9 to 27.6 inches); 70 percent yellowish red (5YR 4/6) crushed and 30 percent dark yellowish brown (10YR 3/4) crushed, yellowish brown (10YR 5/4) crushed, dry; paragravelly medial fine sandy loam; 60 percent sand; 32 percent silt; 8 percent clay; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky, 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 2-4-5 millimeter pumice fragments and 15 percent by volume nonflat subrounded moderately coherent cemented 5-41-75 millimeter pumice fragments; clear irregular boundary. Lab sample # 13N02976; moist when described; observed in pit, small
    2Bg—70 to 86 centimeters (27.6 to 33.9 inches); dark brown (10YR 3/3) broken face, brown (10YR 5/3) broken face, dry; gravelly fine sandy loam; 60 percent sand; 32 percent silt; 8 percent clay; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; few (0.8) very fine roots throughout; common (3.0) very fine low-continuity irregular and common (3.0) fine low-continuity irregular pores; 5 percent medium faint irregular noncoherent cemented very dark grayish brown (2.5Y 3/2), moist, and grayish brown (2.5Y 5/2), dry, iron depletions with clear boundaries on faces of peds and 20 percent medium faint irregular noncoherent cemented dark brown (7.5YR 3/4), moist, and strong brown (7.5YR 4/6), dry, masses of oxidized iron with diffuse boundaries on surfaces along root channels; 5 percent by volume nonflat subangular indurated 2-4-5 millimeter mixed fragments observed by visual inspection method and 5 percent by volume nonflat subangular indurated 75-163-250 millimeter mixed fragments observed by visual inspection method and 10 percent by volume nonflat subangular indurated 5-51-75 millimeter mixed fragments observed by visual inspection method; abrupt irregular boundary. Lab sample # 13N02977; moist when described; observed in pit, small
    3R—86 to 150 centimeters (33.9 to 59.1 inches); unweathered bedrock; fragments.; observed in pit, small