IDENTIFIERS

  • Current Taxon Name (Soil Name): Doubtful
  • OSD
  • Series Extent
  • User Site ID: S2009WA073101
  • User Pedon ID: S2009WA073101
  • Vegetation Plot ID: S2009WA073101
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 10N0842
  • NCSS Pedon Lab Data NASIS Record ID - 37513
  • 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: 48.9275017
  • Std. Longitude: -121.1969452
  • Datum: WGS84
  • Township: 40 N
  • Range: 12 E
  • Section: 26
  • PLSS Details: 290m south and 160m west of the NE corner
  • Location Description: Brown Top SnoTel site, ridge between Little Beaver and Perry Creeks, North Cascades National Park.
  • Map Unit: 9016—Doubtful-Triumph-Perfect complex, 35 to 100 percent slopes
  • State: Washington
  • County: WA073—Whatcom
  • MLRA: 3—Olympic and Cascade Mountains
  • Non-MLRA Soil Survey Area: WA774—North Cascades National Park Complex, Washington
  • 7.5 Minute USGS Quad: 48121-H2—Mount Spickard, Washington

    • PEDON

  • Describers Name: Toby Rodgers
  • Current Taxonomic Class: Ashy over sandy or sandy-skeletal, amorphic over isotic Typic Vitricryands
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Doubtful
  • PSC - 4 to 104 cm.
  • Classificaton Date - 4/17/2012
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Doubtful
  • Classificaton Date - 9/16/2009
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash and till over residuum from granodiorite
  • Landscape: North Cascades mountain range
  • Landform: ridge
  • Geomorphic Component Mountains: mountaintop
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: complex
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Pattern: dendritic
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: indurated moderate weathered granodiorite at 90cm with 10 to <45
  • Surface Fragments: 10.00 percent nonflat subangular indurated 250- to 600-millimeter granodiorite, 10.00 percent nonflat subangular indurated 250- to 600-millimeter granodiorite,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/16/2009 (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 - sunny
  • Current Air Temp - 25
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABLA

    TSME

    PHEM

    CAME7

    VADE

    VAME

    Abies lasiocarpa

    Tsuga mertensiana

    Phyllodoce empetriformis

    Cassiope mertensiana

    Vaccinium deliciosum

    Vaccinium membranaceum

    subalpine fir

    mountain hemlock

    pink mountainheath

    western moss heather

    Cascade bilberry

    thinleaf huckleberry

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    bedrock, lithic

    indurated

    90 -

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

    ochric epipedon

    cambic horizon

    andic soil properties

    lithic contact

    0—8

    4—50

    4—40

    90—

    —-

    —-

    —-

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

    9/16/2009

    9/16/2009

    15

    50

    —

    —

    9

    8
    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

    5

    —

    —

    1780

    —

    220

    2280

    —

    45

    2.8

    —

    —

    4

    —

    —

    —

    —

    1080

    Brown Top

    SNOTEL
    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; 65 percent sand; 33 percent silt; 2 percent clay; moderately rapid permeability; 8.0 very fine low-continuity interstitial pores; fragments; abrupt smooth boundary.; dry when described; observed in pit, small
    Oe—1 to 4 centimeters (0.4 to 1.6 inches); moderately decomposed plant material; 65 percent sand; 33 percent silt; 2 percent clay; moderately rapid permeability; 3.0 very fine roots throughout and 0.8 medium roots throughout and 3.0 fine roots throughout; 3.0 very fine low-continuity dendritic tubular and 3.0 fine low-continuity dendritic tubular pores; fragments; abrupt wavy boundary.; slightly moist when described; observed in pit, small
    A—4 to 8 centimeters (1.6 to 3.1 inches); 50 percent very dark gray (10YR 3/1) crushed and 50 percent very dark grayish brown (10YR 3/2) crushed, 50 percent gray (10YR 5/1) crushed and 50 percent grayish brown (10YR 5/2) crushed, dry; ashy sandy loam; 65 percent sand; 33 percent silt; 2 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 8.0 very fine roots throughout and 0.8 medium roots throughout and 8.0 fine roots throughout; 3.0 very fine low-continuity irregular and 3.0 fine low-continuity irregular pores; 5 percent by volume nonflat subangular indurated 2-4-5 millimeter granodiorite fragments; very strongly acid, pH 4.5, pH indicator strip; clear irregular boundary.; moist when described; observed in pit, small
    Bw1—8 to 20 centimeters (3.1 to 7.9 inches); dark brown (10YR 3/3) crushed, brown (10YR 5/3) crushed, dry; ashy stony sandy loam; 65 percent sand; 32 percent silt; 3 percent clay; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; moderately rapid permeability; 8.0 very fine roots throughout and 3.0 medium roots throughout and 8.0 fine roots throughout and 3.0 coarse roots throughout; 3.0 very fine low-continuity irregular and 3.0 fine low-continuity irregular pores; 5 percent by volume nonflat subangular indurated 250-425-600 millimeter granodiorite fragments and 5 percent by volume nonflat subangular indurated 2-4-5 millimeter granodiorite fragments and 5 percent by volume nonflat subangular indurated 75-163-250 millimeter granodiorite fragments and 10 percent by volume nonflat subangular indurated 5-41-75 millimeter granodiorite fragments; very strongly acid, pH 5.0, pH indicator strip; clear irregular boundary.; moist when described; observed in pit, small
    Bw2—20 to 40 centimeters (7.9 to 15.7 inches); dark yellowish brown (10YR 3/4) crushed, yellowish brown (10YR 5/4) crushed, dry; ashy stony sandy loam; 65 percent sand; 31 percent silt; 4 percent clay; moderate medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; moderately rapid permeability; 8.0 very fine roots throughout and 0.8 medium roots throughout and 8.0 fine roots throughout and 0.8 coarse roots throughout; 3.0 very fine low-continuity irregular and 3.0 medium low-continuity irregular and 3.0 fine low-continuity irregular pores; 5 percent by volume nonflat subangular indurated 2-4-5 millimeter granodiorite fragments and 5 percent by volume nonflat subangular indurated 75-163-250 millimeter granodiorite fragments and 5 percent by volume nonflat subangular indurated 250-425-600 millimeter granodiorite fragments and 10 percent by volume nonflat subangular indurated 5-41-75 millimeter granodiorite fragments; very strongly acid, pH 5.0, pH indicator strip; clear irregular boundary.; moist when described; observed in pit, small
    2BC—40 to 50 centimeters (15.7 to 19.7 inches); dark yellowish brown (10YR 3/4) crushed, dark yellowish brown (10YR 4/4) crushed, dry; very gravelly sandy loam; 70 percent sand; 27 percent silt; 3 percent clay; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 0.8 very fine roots throughout and 0.8 medium roots throughout and 0.8 fine roots throughout; 3.0 very fine low-continuity irregular and 3.0 medium low-continuity irregular and 3.0 fine low-continuity irregular pores; 5 percent by volume nonflat subangular indurated 250-425-600 millimeter granodiorite fragments and 10 percent by volume nonflat subangular indurated 75-163-250 millimeter granodiorite fragments and 10 percent by volume nonflat subangular indurated 2-4-5 millimeter granodiorite fragments and 15 percent by volume nonflat subangular indurated 5-41-75 millimeter granodiorite fragments; strongly acid, pH 5.3, pH indicator strip; gradual irregular boundary.; slightly moist when described; observed in pit, small
    2C—50 to 90 centimeters (19.7 to 35.4 inches); very dark grayish brown (2.5Y 3/2) crushed, dark grayish brown (2.5Y 4/2) crushed, dry; very gravelly loamy sand; 75 percent sand; 24 percent silt; 1 percent clay; structureless single grain; loose, loose, nonsticky, nonplastic; rapid permeability; 0.8 very fine roots throughout and 0.8 fine roots throughout; 3.0 very fine low-continuity irregular and 0.8 medium low-continuity irregular and 3.0 fine low-continuity irregular pores; 5 percent by volume nonflat subangular indurated 250-425-600 millimeter granodiorite fragments and 10 percent by volume nonflat subangular indurated 2-4-5 millimeter granodiorite fragments and 15 percent by volume nonflat subangular indurated 75-163-250 millimeter granodiorite fragments and 25 percent by volume nonflat subangular indurated 5-41-75 millimeter granodiorite fragments; strongly acid, pH 5.5, pH indicator strip; abrupt wavy boundary.; slightly moist when described; observed in pit, small
    R—90 to 115 centimeters (35.4 to 45.3 inches); unweathered bedrock; fragments.; observed in pit, small