IDENTIFIERS

  • Current Taxon Name (Soil Name): Whiterock
  • OSD
  • Series Extent
  • User Site ID: 07-SMM-008
  • User Pedon ID: S2007CA109003
  • Vegetation Plot ID: 07-SMM-008
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 07N0472
  • NCSS Pedon Lab Data NASIS Record ID - 19075
  • Print Date: 11/23/2024

    • 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: 37.8327789
  • Std. Longitude: -120.5163040
  • Datum: WGS84
  • Township: 1 S
  • Range: 13 E
  • Section: 23
  • PLSS Details: about 575 feet east and 2280 feet north of the southwest corner
  • Location Description: about 0.5 miles southwest of the community of Keystone, California
  • Map Unit: 8034—Copperopolis-Whiterock complex, 3 to 15 percent slopes, rocky
  • Country: US—United States
  • State: California
  • County: CA109—Tuolumne
  • MLRA: 18—Sierra Nevada Foothills
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 37120-G5—Keystone, California

    • PEDON

  • Describers Name: Sue Malone
  • Current Taxonomic Class: Loamy, mixed, superactive, thermic Lithic Haploxerepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Whiterock
  • PSC - 0 to 36 cm.
  • Classificaton Date - 1/24/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Whiterock
  • Classificaton Date - 3/29/2007
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from metasedimentary rock
  • Landscape: foothills
  • Landform: hillslope
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Drainage Class: well
  • Bedrock: very strongly coherent metasedimentary rock, unspecified at 36cm with 10 to <45
  • Geology: Mariposa Slate formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/29/2007 (actual site observation date)
  • Plant Association Name: Blue Oak Woodland
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 18
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AMSIN

    DICA14

    ERCI6

    HEMIZ

    LUBI

    QUDO

    TRIFO

    VICIA

    Amsinckia

    Dichelostemma capitatum

    Erodium cicutarium

    Hemizonia

    Lupinus bicolor

    Quercus douglasii

    Trifolium

    Vicia

    fiddleneck

    bluedicks

    redstem stork's bill

    tarweed

    miniature lupine

    blue oak

    clover

    vetch

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

    bedrock, lithic

    very strongly coherent

    36 - 61

    - 25 -

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

    ochric epipedon

    cambic horizon

    lithic contact

    0—18

    10—36

    36—

    —10—

    —13—

    —0—
    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    3/29/2007

    36

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    17
    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

    8

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    —

    336

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    288

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    A1—0 to 3 centimeters (0.0 to 1.2 inches); pale brown (10YR 6/3), dark brown (10YR 3/3), moist; loam; 50 percent sand; 34 percent silt; 16 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; soft, friable, nonsticky, slightly plastic; 8.0 very fine roots throughout and 8.0 fine roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 10 percent by volume flat strongly coherent cemented 2-?-75 millimeter metasedimentary, unspecified fragments; noneffervescent; slightly acid, pH 6.4, hellige-truog; abrupt smooth boundary. Lab sample # 07N03095; moist when described; observed in pit, small
    A2—3 to 10 centimeters (1.2 to 3.9 inches); pale brown (10YR 6/3), dark brown (10YR 3/3), moist; loam; 50 percent sand; 32 percent silt; 18 percent clay; weak fine subangular blocky, and weak medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 3.0 fine roots throughout; 8.0 very fine irregular and 0.8 fine tubular and 8.0 fine irregular pores; 10 percent by volume flat strongly coherent cemented 2-?-75 millimeter metasedimentary, unspecified fragments; noneffervescent; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 07N03096; moist when described; observed in pit, small
    Bw1—10 to 23 centimeters (3.9 to 9.1 inches); light yellowish brown (10YR 6/4), brown (10YR 4/3), moist; channery loam; 50 percent sand; 30 percent silt; 20 percent clay; moderate coarse subangular blocky, and moderate medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 0.8 fine roots throughout; 3.0 very fine irregular and 3.0 fine tubular and 3.0 fine irregular pores; 1 percent faint clay films; 15 percent by volume flat strongly coherent cemented 2-?-75 millimeter metasedimentary, unspecified fragments; noneffervescent; strongly acid, pH 5.1, hellige-truog; abrupt broken boundary. Lab sample # 07N03097; moist when described; observed in pit, small
    Bw2—23 to 36 centimeters (9.1 to 14.2 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; channery loam; 50 percent sand; 30 percent silt; 20 percent clay; weak fine subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 0.8 fine roots throughout; 3.0 very fine irregular and 3.0 fine tubular and 3.0 fine irregular pores; 1 percent faint clay films; 30 percent by volume flat strongly coherent cemented 2-?-75 millimeter metasedimentary, unspecified fragments; noneffervescent; - 30 - percent of the total horizon; - 30 - percent of the lateral area; strongly acid, pH 5.5, hellige-truog; abrupt broken boundary. Lab sample # 07N03098; moist when described; observed in pit, small
    R—36 to 61 centimeters (14.2 to 24.0 inches); bedrock; fragments.; observed in pit, small