IDENTIFIERS

  • Current Taxon Name (Soil Name): Combsflat
  • OSD
  • Series Extent
  • User Site ID: 10OR069006
  • User Pedon ID: S2010OR069006
  • Vegetation Plot ID: 10OR069006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 11N0366
  • NCSS Pedon Lab Data NASIS Record ID - 43412
  • Print Date: 4/21/2025

    • 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: 44.9888344
  • Std. Longitude: -119.9300308
  • Datum: WGS84
  • State: Oregon
  • County: OR069—Wheeler
  • MLRA: 10—Central Rocky and Blue Mountain Foothills
  • Regional Office: 1—Portland, OR
  • Non-MLRA Soil Survey Area: OR677—Wheeler County Area, Oregon
  • 7.5 Minute USGS Quad: 44119-H8—Wheeler Point, Oregon

    • PEDON

  • Describers Name: Kyle Stephens
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Combsflat
  • PSC - 1 to 101 cm.
  • Classificaton Date - 8/18/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: ash over residuum and colluvium from andesite and tuff
  • Landscape: hills, hills
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: footslope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/18/2010 (actual site observation date)
  • Plant Association Name: Douglas-Fir/Elk Sedge
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CAGE2

    PIPO

    PSEUD7

    SYAL

    ABGR

    APAN2

    LAOC

    ROWO

    Carex geyeri

    Pinus ponderosa

    Pseudotsuga

    Symphoricarpos albus

    Abies grandis

    Apocynum androsaemifolium

    Larix occidentalis

    Rosa woodsii

    Geyer's sedge

    ponderosa pine

    Douglas-fir

    common snowberry

    grand fir

    spreading dogbane

    western larch

    Woods' rose

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

    mollic epipedon

    andic soil properties

    volcanic glass

    argillic horizon

    slickensides

    1—102

    1—53

    1—53

    23—180

    53—102

    —101—

    —52—

    —52—

    —157—

    —49—
    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

    17

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    1313

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    320

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    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments.
    A—1 to 23 centimeters (0.4 to 9.1 inches); very dark grayish brown (10YR 3/2) broken face, grayish brown (10YR 5/2) broken face, dry; gravelly ashy loam; 40 percent sand; 45 percent silt; 15 percent clay; moderate medium granular structure; slightly hard, very friable, slightly sticky, slightly plastic; 35.0 very fine roots throughout and 2.0 very coarse roots throughout and 3.0 medium roots throughout and 15.0 fine roots throughout and 1.0 coarse roots throughout; 30.0 very fine irregular and 15.0 fine irregular pores; 15 percent by volume 2-?-75 millimeter unspecified fragments; clear wavy boundary. Lab sample # 11N01957
    Bt—23 to 53 centimeters (9.1 to 20.9 inches); dark brown (10YR 3/3) broken face, brown (10YR 5/3) broken face, dry; gravelly ashy loam; 30 percent sand; 49 percent silt; 21 percent clay; strong medium subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; 4.0 very fine roots throughout and 3.0 very coarse roots throughout and 3.0 medium roots throughout and 4.0 fine roots throughout and 2.0 coarse roots throughout; 2.0 very fine dendritic tubular and 15.0 fine dendritic tubular pores; 5 percent clay films on all faces of peds; 5 percent by volume basalt fragments and 15 percent by volume 2-?-75 millimeter basalt fragments; abrupt smooth boundary. Lab sample # 11N01958
    2Btss—53 to 102 centimeters (20.9 to 40.2 inches); very dark grayish brown (10YR 3/2) broken face clay; 20 percent sand; 25 percent silt; 55 percent clay; strong coarse prismatic parts to strong medium angular blocky structure; slightly rigid, very sticky, very plastic; 1.0 very fine roots between peds and 2.0 medium roots between peds and 1.0 fine roots between peds; 3.0 very fine dendritic tubular and 5.0 coarse irregular pores; 20 percent clay films on all faces of peds and 20 percent pressure faces and 20 percent slickensides (pedogenic) on vertical faces of peds; fragments; clear wavy boundary. Lab sample # 11N01959
    2Btq1—102 to 127 centimeters (40.2 to 50.0 inches); olive brown (2.5Y 4/3) broken face clay loam; 40 percent sand; 21 percent silt; 39 percent clay; moderate medium prismatic structure; extremely firm, very sticky, very plastic; 0.1 very fine roots between peds and 0.1 fine roots between peds; 0.1 very fine dendritic tubular pores; 30 percent clay films on all faces of peds; 1 percent moderately coherent cemented durinodes with clear boundaries; fragments; clear wavy boundary. Lab sample # 11N01960
    2Btq2—127 to 180 centimeters (50.0 to 70.9 inches); dark yellowish brown (10YR 3/4) broken face clay loam; 40 percent sand; 27 percent silt; 33 percent clay; moderate medium prismatic parts to strong medium angular blocky structure; firm, moderately sticky, very plastic; 0.1 very fine roots between peds and 0.1 fine roots between peds; 0.1 very fine dendritic tubular pores; 10 percent clay films on all faces of peds and 25 percent pressure faces on all faces of peds; 1 percent moderately coherent cemented durinodes with clear boundaries; fragments. Lab sample # 11N01961