IDENTIFIERS

  • Current Taxon Name (Soil Name): Coppercreek
  • OSD
  • Series Extent
  • User Site ID: S1986CA605REDW002
  • User Pedon ID: S10CA023023
  • Vegetation Plot ID: S1986CA605REDW002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 10N0694
  • NCSS Pedon Lab Data NASIS Record ID - 58620
  • Print Date: 2/1/2025

    • 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: 41.2539919
  • Std. Longitude: -124.0756339
  • Datum: WGS84
  • Location Description: Redwood National Park, Humboldt County, California; 5 miles w of West Access road; 1.9 miles south of gate
  • Map Unit: 562—Trailhead-Fortyfour complex, 30 to 50 percent slopes
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4—California Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA605—Humboldt and Del Norte Area, California
  • 7.5 Minute USGS Quad: 41124-C1—Orick, California

    • PEDON

  • Describers Name: Nancy Sturhan
  • Current Taxonomic Class: Fine-loamy, mixed, active, isomesic Typic Haplohumults
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 23
  • Sampled As Information:
  • Soil Name - Coppercreek
  • Taxonomic Class - Fine-loamy, mixed, active, isomesic Typic Haplohumults
  • PSC - 59 to 109 cm.
  • Classificaton Date - 7/22/1986
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: marine deposits derived from mixed sources
  • Landscape: mountains
  • Landform: mountain on uplifted marine terrace
  • Geomorphic Component Mountains: mountaintop
  • Hill Slope Profile: summit
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Marine Sediments Over Residdum Derived From Schist formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/22/1986 (actual site observation date)
  • Air Photo ID: 4-22
  • Surface Water Kind: none observed
  • Plant Association Name: Redwood-Douglas-fir Forest
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    SESE3

    ALRU2

    PSME

    PISI

    GASH

    BAPI

    RUUR

    MANE2

    RUPA

    POMU

    PTAQ

    Sequoia sempervirens

    Alnus rubra

    Pseudotsuga menziesii

    Picea sitchensis

    Gaultheria shallon

    Baccharis pilularis

    Rubus ursinus

    Mahonia nervosa

    Rubus parviflorus

    Polystichum munitum

    Pteridium aquilinum

    redwood

    red alder

    Douglas-fir

    Sitka spruce

    salal

    coyotebrush

    California blackberry

    Cascade barberry

    thimbleberry

    western swordfern

    western brackenfern

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

    ochric epipedon

    argillic horizon

    0—23

    59—170

    —23—

    —111—
    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

    9

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    300

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    240

    2150

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    280

    11

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments; noneffervescent; abrupt wavy boundary.; dry when described; observed in pit, small
    A—3 to 23 centimeters (1.2 to 9.1 inches); dark brown (10YR 3/3) broken face, brown (10YR 4/3) broken face, dry; loam; 18 percent clay; moderate fine granular, and moderate medium granular structure; slightly hard, very friable, slightly sticky, slightly plastic; moderate permeability; 6.0 very fine roots and 2.0 medium roots and 6.0 fine roots and 1.0 coarse roots; 6.0 very fine irregular and 2.0 very fine tubular and 2.0 medium tubular and 2.0 fine tubular pores; 6 percent by volume nonflat subrounded very strongly coherent cemented 2-38-75 millimeter mixed fragments; noneffervescent; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary. Lab sample # 10N03181; dry when described; observed in pit, small
    BA—23 to 59 centimeters (9.1 to 23.2 inches); yellowish brown (10YR 5/6) broken face, yellowish brown (10YR 5/6) broken face, dry; loam; 24 percent clay; weak coarse subangular blocky, and weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 2.0 medium roots and 4.0 fine roots and 1.0 coarse roots; 2.0 very fine tubular and 1.0 fine tubular pores; 3 percent by volume nonflat subrounded very strongly coherent cemented 2-38-75 millimeter mixed fragments; noneffervescent; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 10N03182; moist when described; observed in pit, small
    Bt1—59 to 85 centimeters (23.2 to 33.5 inches); yellowish brown (10YR 5/8) broken face, yellow (10YR 7/6) broken face, dry; silty clay loam; 28 percent clay; weak very coarse subangular blocky, and weak coarse subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; moderately slow permeability; 3.0 very fine roots and 1.0 medium roots and 3.0 fine roots; 2.0 very fine tubular and 1.0 medium tubular and 2.0 fine tubular pores; 2 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds; 3 percent by volume nonflat rounded very strongly coherent cemented 2-38-75 millimeter mixed fragments; noneffervescent; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 10N03183; moist when described; observed in pit, small
    Bt2—85 to 96 centimeters (33.5 to 37.8 inches); 60 percent yellowish brown (10YR 5/8) broken face and 30 percent strong brown (7.5YR 5/8) broken face, 60 percent brownish yellow (10YR 6/6) broken face and 30 percent strong brown (7.5YR 5/8) broken face, dry; silty clay loam; 30 percent clay; weak coarse subangular blocky, and weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderately slow permeability; 1.0 very fine roots and 1.0 fine roots; 2.0 very fine tubular and 2.0 fine tubular pores; 2 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds; 25 percent by volume nonflat rounded very strongly coherent cemented 2-38-75 millimeter mixed fragments; noneffervescent; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary. Lab sample # 10N03184; moist when described; observed in pit, small
    CBt1—96 to 105 centimeters (37.8 to 41.3 inches); 50 percent yellowish red (5YR 5/8) broken face and 50 percent strong brown (7.5YR 5/8) broken face, 50 percent strong brown (7.5YR 5/8) broken face and 50 percent yellowish red (5YR 5/8) broken face, dry; gravelly clay loam; 28 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderately slow permeability; 1.0 very fine roots and 1.0 fine roots; 1.0 very fine tubular pores; 2 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds; 25 percent by volume nonflat rounded very strongly coherent cemented 2-38-75 millimeter mixed fragments; noneffervescent; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary. Lab sample # 10N03185; moist when described; observed in pit, small
    2CBt2—105 to 170 centimeters (41.3 to 66.9 inches); variegated 80 percent red (2.5YR 4/8) broken face and yellowish brown (10YR 5/6) broken face, 80 percent red (2.5YR 4/8) broken face and brownish yellow (10YR 6/6) broken face, dry; gravelly loam; 22 percent clay; massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots; 1.0 very fine tubular pores; 2 percent distinct red (2.5YR 4/6), moist, clay films on rock fragments; 30 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; noneffervescent; very strongly acid, pH 5.0, hellige-truog; abrupt irregular boundary. Lab sample # 10N03186; moist when described; observed in pit, small
    2C—170 to 186 centimeters (66.9 to 73.2 inches); extremely gravelly loamy sand; 4 percent clay; massive; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 67 percent by volume nonflat subangular very strongly coherent cemented 2-38-75 millimeter schist, unspecified fragments; strongly acid, pH 5.5, hellige-truog. Lab sample # 10N03187; moist when described; observed in pit, small