IDENTIFIERS

  • Current Taxon Name (Soil Name): Gopheridge
  • OSD
  • Series Extent
  • User Site ID: 07-JCR-002
  • User Pedon ID: S2007CA009002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 07N0469
  • NCSS Pedon Lab Data NASIS Record ID - 19072
  • Print Date: 2/16/2025

    • 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: 37.9428596
  • Std. Longitude: -120.7150269
  • Datum: WGS84
  • Township: 1 N.
  • Range: 11 .
  • Section: 13
  • PLSS Details: about 185 meters (600 feet) south and 610 meters (2,000 feet) west of the northeast corner of
  • Map Unit: 7076—Bonanza-Loafercreek-Gopheridge complex, 15 to 30 percent slopes
  • Country: US—United States
  • State: California
  • County: CA009—Calaveras
  • 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-H6—Copperopolis, California

    • PEDON

  • Describers Name: John Rule
  • Current Taxonomic Class: Loamy-skeletal, mixed, active, thermic Ultic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Gopheridge (flagged as OSD)
  • PSC - 18 to 68 cm.
  • Classificaton Date - 1/24/2012
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Gopheridge
  • Classificaton Date - 4/2/2007
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from greenstone and/or residuum weathered from greenstone
  • Landscape: foothills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: high
  • Drainage Class: well
  • Bedrock: strongly coherent moderate weathered greenstone at 81cm
  • Geology: Gopher Ridge formation.
  • Surface Fragments: 3.00 percent nonflat subangular indurated 2- to 76-millimeter quartz, 5.00 percent nonflat subrounded indurated 2- to 20-millimeter greenstone, 3.00 percent nonflat subangular indurated 20- to 76-millimeter greenstone, 1.00 percent nonflat subangular indurated 76- to 250-millimeter greenstone,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/2/2007 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    very strongly coherent

    81 - 201

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

    ochric epipedon

    argillic horizon

    lithic contact

    0—18

    18—81

    81—

    —28—

    —50—

    —-
    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

    20

    —

    —

    337

    —

    272

    23

    —

    215

    19

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments; moderately acid, pH 6.0, pH indicator solutions. Lab sample # 07N03080
    Oe—3 to 5 centimeters (1.2 to 2.0 inches); moderately decomposed plant material; fragments; slightly acid, pH 6.2, pH indicator solutions; abrupt smooth boundary. Lab sample # 07N03080
    A1—5 to 10 centimeters (2.0 to 3.9 inches); reddish brown (5YR 4/4) crushed, dark reddish brown (5YR 3/4) crushed, moist; loam; 35 percent sand; 45 percent silt; 19 percent clay; moderate medium granular structure; hard, firm, slightly sticky, nonplastic; moderate permeability; low excavation difficulty; 5.0 very fine roots throughout; 2.0 medium tubular and 1.0 fine irregular pores; 2 percent by volume nonflat subrounded indurated 2-20-76 millimeter quartz fragments and 4 percent by volume nonflat subrounded indurated 2-20-76 millimeter greenstone fragments; 15 percent krotovinas (volume percent); noneffervescent, by hcl, 1n; slightly acid, pH 6.4, pH meter; clear smooth boundary. Lab sample # 07N03081; observed in pit, small
    A2—10 to 18 centimeters (3.9 to 7.1 inches); yellowish red (5YR 4/6) crushed, dark reddish brown (2.5YR 3/4) crushed, moist; loam; 36 percent sand; 45 percent silt; 20 percent clay; moderate medium subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; moderate permeability; low excavation difficulty; 5.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine dendritic tubular and 2.0 medium tubular pores; 1 percent by volume nonflat subrounded indurated 2-20-76 millimeter quartz fragments and 10 percent by volume nonflat subrounded indurated 2-20-76 millimeter greenstone fragments; 15 percent krotovinas (volume percent); noneffervescent, by hcl, 1n; slightly acid, pH 6.1, pH meter; clear wavy boundary. Lab sample # 07N03082; observed in pit, small
    Bt1—18 to 36 centimeters (7.1 to 14.2 inches); yellowish red (5YR 4/6) crushed, dark reddish brown (2.5YR 3/4) crushed, moist; extremely gravelly loam; 34 percent sand; 42 percent silt; 24 percent clay; moderate medium subangular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; moderate permeability; extremely high excavation difficulty; 0.5 very fine roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout and 0.5 coarse roots throughout; 5.0 very fine dendritic tubular and 2.0 medium tubular pores; 10 percent faint yellowish red (5YR 5/6), dry, clay films on all faces of peds; 2 percent by volume nonflat subrounded indurated 2-20-76 millimeter quartz fragments and 5 percent by volume nonflat subrounded strongly coherent cemented 250-350-600 millimeter greenstone fragments and 11 percent by volume nonflat subrounded strongly coherent cemented 76-125-250 millimeter greenstone fragments and 45 percent by volume nonflat subrounded strongly coherent cemented 2-20-76 millimeter greenstone fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.1, pH meter; gradual smooth boundary. Lab sample # 07N03083; observed in pit, small. discontinuous - phpvsfiid 357254; discontinuous - phpvsfiid 357254
    Bt2—36 to 53 centimeters (14.2 to 20.9 inches); reddish brown (5YR 4/4) crushed, dark reddish brown (2.5YR 3/4) crushed, moist; very stony clay loam; 29 percent sand; 34 percent silt; 37 percent clay; strong medium subangular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; moderately slow permeability; extremely high excavation difficulty; 0.5 very fine roots throughout and 0.5 very coarse roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout and 0.5 coarse roots throughout; 5.0 very fine dendritic tubular and 0.5 medium tubular pores; 25 percent distinct yellowish red (5YR 4/6), dry, clay films on all faces of peds; 2 percent by volume nonflat subrounded indurated 2-20-75 millimeter quartz fragments and 5 percent by volume nonflat subrounded moderately coherent cemented 2-20-75 millimeter greenstone fragments and 10 percent by volume nonflat subrounded strongly coherent cemented 250-350-600 millimeter greenstone fragments and 11 percent by volume nonflat subrounded strongly coherent cemented 76-125-250 millimeter greenstone fragments and 36 percent by volume nonflat subrounded strongly coherent cemented 2-20-75 millimeter greenstone fragments; noneffervescent, by hcl, 1n; moderately acid, pH 6.0, pH meter; clear wavy boundary. Lab sample # 07N03084; observed in pit, small. discontinuous - phpvsfiid 357255; discontinuous - phpvsfiid 357255
    Bt3—53 to 81 centimeters (20.9 to 31.9 inches); red (2.5YR 4/6) crushed, yellowish red (5YR 4/6) crushed, moist; extremely stony clay; 27 percent sand; 29 percent silt; 44 percent clay; strong medium subangular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; slow permeability; extremely high excavation difficulty; 0.5 very fine roots throughout and 0.5 very coarse roots throughout and 1.0 medium roots throughout and 1.0 fine roots throughout and 0.5 coarse roots throughout; 5.0 very fine dendritic tubular and 1.0 fine dendritic tubular pores; 30 percent distinct yellowish red (5YR 4/6), dry, clay films on all faces of peds; 2 percent by volume nonflat subrounded indurated 2-20-76 millimeter quartz fragments and 5 percent by volume nonflat subrounded strongly coherent cemented 2-20-76 millimeter greenstone fragments and 20 percent by volume nonflat subrounded strongly coherent cemented 76-125-250 millimeter greenstone fragments and 40 percent by volume nonflat subrounded strongly coherent cemented 250-350-600 millimeter greenstone fragments; noneffervescent, by hcl, 1n; moderately acid, pH 5.7, pH meter; abrupt broken boundary. Lab sample # 07N03085; observed in pit, small. discontinuous - phpvsfiid 357256; discontinuous - phpvsfiid 357256
    R—81 to 152 centimeters (31.9 to 59.8 inches); bedrock; fragments.