IDENTIFIERS

  • Current Taxon Name (Soil Name): Rockysaddle
  • OSD
  • Series Extent
  • User Site ID: S1988CA605REDW010
  • User Pedon ID: S10CA023011
  • Vegetation Plot ID: S1988CA605REDW010
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 10N0682
  • NCSS Pedon Lab Data NASIS Record ID - 43150
  • Print Date: 11/24/2024

    • 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: 41.1443672
  • Std. Longitude: -123.9052887
  • Datum: WGS84
  • Township: 9N
  • Range: 2E
  • Section: 25
  • PLSS Details: southeast quarter, northwest quarter
  • Location Description: Redwood National Park, Humboldt County, California; located approximately 30 kilometers southeast of the town of Orick, one kilometer west on Lyons Ranch road from Bald Hills road, then 1200 feet north down hill.
  • Map Unit: 543—Wiregrass-Rockysaddle-Scaath 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: 41123-B8—Bald Hills, California

    • PEDON

  • Describers Name: Jim Popenoe & Nancy Sturhan
  • Current Taxonomic Class: Loamy-skeletal, mixed, semiactive, isomesic Ustic Palehumults
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 11
  • Correlated Information:
  • Soil Name - Rockysaddle
  • PSC - 35 to 85 cm.
  • Classificaton Date - 4/12/2010
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture Subclass - udic
  • Sampled As Information:
  • Soil Name - Rockysaddle
  • Taxonomic Class - Loamy-skeletal, mixed, semiactive, isomesic Ustic
  • Taxon Kind - series
  • Classificaton Date - 8/16/1988
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium and residiuum derived from graywacke sandstone, shale and siltstone
  • Landscape: mountains
  • Landform: mountain slope
  • Geomorphic Component Mountains: mountainflank, upper third
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: sandstone, unspecified
  • Geology: Franciscan Formation formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/16/1988 (actual site observation date)
  • Air Photo ID: 9-44
  • Surface Water Kind: none observed
  • Plant Association Name: Douglas-fir-Tanoak Forest, very dry
  • 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

    LIDE3

    ARME

    PSME

    Lithocarpus densiflorus

    Arbutus menziesii

    Pseudotsuga menziesii

    tanoak

    Pacific madrone

    Douglas-fir

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    argillic horizon

    0—35

    35—156

    —35—

    —121—
    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

    36

    —

    —

    732

    —

    293

    2150

    —

    270

    11

    14

    8

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 6 centimeters (0.0 to 2.4 inches); slightly decomposed plant material; fragments; noneffervescent.; observed in pit, small
    A—6 to 14 centimeters (2.4 to 5.5 inches); dark brown (7.5YR 3/3) broken face, brown (10YR 5/3) broken face, dry; extremely gravelly loam; 22 percent clay; moderate fine granular, and moderate medium granular structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 fine roots; 10.0 very fine irregular and 4.0 medium tubular and 10.0 fine irregular and 4.0 coarse tubular pores; 86 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.7, pH meter; abrupt smooth boundary. Lab sample # 10N03117; moist when described; observed in pit, small
    AB—14 to 35 centimeters (5.5 to 13.8 inches); brown (7.5YR 4/4) broken face and dark brown (7.5YR 3/4) broken face, light yellowish brown (10YR 6/4) broken face, dry; very gravelly loam; 25 percent clay; weak medium subangular blocky, and weak fine subangular blocky, and moderate medium granular, and moderate fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 medium roots and 10.0 fine roots and 4.0 coarse roots; 10.0 very fine irregular and 4.0 medium tubular and 10.0 fine irregular and 4.0 coarse tubular pores; 58 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.6, pH meter; gradual wavy boundary. Lab sample # 10N03118; moist when described; observed in pit, small
    BAt1—35 to 54 centimeters (13.8 to 21.3 inches); dark yellowish brown (10YR 4/4) broken face, light yellowish brown (10YR 6/4) broken face, dry; extremely gravelly clay loam; 28 percent clay; weak medium subangular blocky, and weak fine granular, and weak coarse subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 medium roots and 10.0 fine roots and 4.0 coarse roots; 10.0 very fine interstitial and 4.0 medium tubular and 10.0 fine interstitial and 4.0 coarse tubular pores; 67 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.3, pH meter; clear smooth boundary. Lab sample # 10N03119; moist when described; observed in pit, small
    BAt2—54 to 69 centimeters (21.3 to 27.2 inches); yellowish brown (10YR 5/4) broken face, very pale brown (10YR 7/4) broken face, dry; very gravelly clay loam; 30 percent clay; weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 4.0 medium tubular and 4.0 fine tubular and 0.5 coarse tubular pores; 52 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.4, pH meter; clear smooth boundary. Lab sample # 10N03120; moist when described; observed in pit, small
    Bt1—69 to 95 centimeters (27.2 to 37.4 inches); yellowish brown (10YR 5/6) broken face, very pale brown (10YR 7/4) broken face, dry; very gravelly silty clay loam; 32 percent clay; weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 4.0 medium tubular and 4.0 fine tubular and 0.5 coarse tubular pores; 7 percent faint clay films on surfaces along pores and 8 percent faint clay films on rock fragments; 50 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.3, pH meter; clear smooth boundary. Lab sample # 10N03121; moist when described; observed in pit, small
    Bt2—95 to 113 centimeters (37.4 to 44.5 inches); yellowish brown (10YR 5/4) broken face, very pale brown (10YR 7/3) broken face, dry; very gravelly silty clay loam; 35 percent clay; weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 4.0 coarse roots; 10.0 very fine interstitial and 4.0 medium tubular and 10.0 fine interstitial and 0.5 coarse tubular pores; 7 percent distinct clay films on all faces of peds and 8 percent distinct clay films on surfaces along pores; 36 percent by volume indurated 2-38-76 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.4, pH meter; gradual smooth boundary. Lab sample # 10N03122; moist when described; observed in pit, small
    BCt—113 to 156 centimeters (44.5 to 61.4 inches); yellowish brown (10YR 5/4) broken face, very pale brown (10YR 7/3) broken face, dry; extremely gravelly silty clay loam; 35 percent clay; structureless massive; hard, friable, moderately sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine interstitial and 4.0 medium tubular and 10.0 fine interstitial and 0.5 coarse tubular pores; 15 percent faint clay films on surfaces along pores; 73 percent by volume moderately coherent cemented 2-38-75 millimeter sandstone, unspecified fragments; noneffervescent; strongly acid, pH 5.4, pH meter. Lab sample # 10N03123; moist when described; observed in pit, small