IDENTIFIERS

  • Current Taxon Name (Soil Name): McCarthy
  • OSD
  • Series Extent
  • User Site ID: S2007CA630SMM045
  • User Pedon ID: S07CA009008
  • Vegetation Plot ID: S2007CA630SMM045
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 08N0161
  • NCSS Pedon Lab Data NASIS Record ID - 19680
  • Print Date: 11/26/2024

    • 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: 38.4321671
  • Std. Longitude: -120.4270248
  • Datum: WGS84
  • Township: 7 N
  • Range: 14 E
  • Section: 27
  • PLSS Details: about 425 feet east and 2210 feet south of the northwest corner section
  • Location Description: about 5.8 miles northeast of the community of West Point, California
  • Map Unit: 4040—Iron Mountain-Redapple-Devilsnose complex, 3 to 15 percent slopes
  • Country: US—United States
  • State: California
  • County: CA009—Calaveras
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 38120-D4—Devils Nose, California

    • PEDON

  • Describers Name: Sue Malone
  • Current Taxonomic Class: Loamy-skeletal, isotic, mesic Andic Humixerepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: representative pedon for component
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - McCarthy
  • PSC - 28 to 91 cm.
  • Classificaton Date - 12/28/2015
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - McCarthy
  • Classificaton Date - 10/22/2007
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash over colluvium derived from tuff breccia and/or residuum weathered from tuff breccia
  • Landscape: mountains
  • Landform: dissected broad ridge
  • Geomorphic Component Mountains: mountaintop
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Drainage Class: well
  • Bedrock: indurated tuff breccia at 91cm
  • Geology: Mehrten Formation formation.
  • Surface Fragments: 11.00 percent 250- to 600-millimeter tuff breccia, 10.00 percent 76- to 250-millimeter tuff breccia,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/22/2007 (actual site observation date)
  • Plant Association Name: Sierran Mixed Conifer
  • 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
  • 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

    ARPA6

    BRHOH

    CECU

    CHFO

    CYNOS2

    PIPO

    QUKE

    Arctostaphylos patula

    Bromus hordeaceus ssp. hordeaceus

    Ceanothus cuneatus

    Chamaebatia foliolosa

    Cynosurus

    Pinus ponderosa

    Quercus kelloggii

    greenleaf manzanita

    soft brome

    buckbrush

    mountain misery

    dogstail grass

    ponderosa pine

    California black oak

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

    bedrock, paralithic

    bedrock, lithic

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    indurated

    91 - 101

    101 -

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

    umbric epipedon

    cambic horizon

    paralithic materials

    lithic contact

    3—38

    38—76

    91—101

    101—

    —25—

    —53—

    —25—

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

    10/22/2007

    50

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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

    10

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    1266

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    120

    1270

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments; abrupt smooth boundary.; observed in trench
    A1—3 to 10 centimeters (1.2 to 3.9 inches); brown (10YR 4/3) broken face, very dark brown (7.5YR 2.5/2) crushed, moist; gravelly medial loam; 48 percent sand; 36 percent silt; 16 percent clay; weak fine granular structure; soft, very friable, nonsticky, slightly plastic; slightly fluid; 20.0 very fine roots throughout and 0.8 medium roots throughout and 20.0 fine roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 5 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method and 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method; slightly acid, pH 6.2, hellige-truog; clear wavy boundary.; dry when described; observed in trench
    A2—10 to 23 centimeters (3.9 to 9.1 inches); brown (10YR 5/3) broken face, dark brown (7.5YR 3/2) crushed, moist; very gravelly medial loam; 49 percent sand; 35 percent silt; 16 percent clay; weak fine subangular blocky, and weak medium subangular blocky structure; soft, very friable, nonsticky, slightly plastic; slightly fluid; 8.0 very fine roots throughout and 0.8 medium roots throughout and 8.0 fine roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 10 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method and 30 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method; moderately acid, pH 5.9, hellige-truog; clear wavy boundary.; dry when described; observed in trench
    AB—23 to 38 centimeters (9.1 to 15.0 inches); brown (10YR 5/3) broken face, dark brown (7.5YR 3/3) crushed, moist; very gravelly medial loam; 50 percent sand; 33 percent silt; 17 percent clay; weak medium angular blocky structure; soft, very friable, nonsticky, slightly plastic; slightly fluid; 3.0 very fine roots throughout and 0.8 medium roots throughout and 3.0 fine roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 15 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method and 35 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method; moderately acid, pH 6.0, hellige-truog; gradual wavy boundary.; dry when described; observed in trench
    Bw1—38 to 56 centimeters (15.0 to 22.0 inches); brown (7.5YR 5/4) broken face, dark brown (7.5YR 3/4) crushed, moist; extremely cobbly medial sandy loam; 53 percent sand; 31 percent silt; 16 percent clay; weak coarse subangular blocky, and weak medium subangular blocky structure; soft, very friable, nonsticky, slightly plastic; slightly fluid; 3.0 very fine roots throughout and 0.8 medium roots throughout and 3.0 fine roots throughout and 0.8 coarse roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 30 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method and 40 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method; moderately acid, pH 5.9, hellige-truog; gradual wavy boundary.; dry when described; observed in trench
    Bw2—56 to 79 centimeters (22.0 to 31.1 inches); brown (7.5YR 5/4) broken face, dark brown (7.5YR 3/4) crushed, moist; extremely cobbly medial sandy loam; 55 percent sand; 30 percent silt; 15 percent clay; weak coarse subangular blocky structure; soft, very friable, nonsticky, slightly plastic; slightly fluid; 0.8 very fine roots throughout and 0.8 medium roots throughout and 0.8 fine roots throughout and 0.8 coarse roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 30 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method and 40 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method; strongly acid, pH 5.5, hellige-truog; clear wavy boundary.; dry when described; observed in trench
    2BC—79 to 91 centimeters (31.1 to 35.8 inches); brown (7.5YR 5/3) broken face extremely gravelly medial loamy coarse sand; 80 percent sand; 19 percent silt; 1 percent clay; weak coarse subangular blocky structure; slightly hard, very friable, nonsticky, slightly plastic; slightly fluid; 0.8 very fine roots throughout and 0.8 fine roots throughout; 8.0 very fine irregular and 8.0 fine irregular pores; 30 percent by volume nonflat subrounded indurated 75-163-250 millimeter tuff breccia fragments observed by visual inspection method and 50 percent by volume nonflat subrounded indurated 2-39-75 millimeter tuff breccia fragments observed by visual inspection method; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary.; dry when described; observed in trench
    2Cr—91 to 101 centimeters (35.8 to 39.8 inches); bedrock; fragments.; observed in trench
    2R—101 to 200 centimeters (39.8 to 78.7 inches); bedrock; indurated; fragments.