IDENTIFIERS

  • Current Taxon Name (Soil Name): Mckeonhills
  • OSD
  • Series Extent
  • User Site ID: S1980-CA-05-079x
  • User Pedon ID: 80-CA-05-079x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD8005079
  • NCSS Pedon Lab Data NASIS Record ID - 42365
  • Print Date: 11/21/2024

    • 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: 37.9792350
  • Std. Longitude: -120.8091350
  • Datum: WGS84
  • Township: 2N
  • Range: 11E
  • Section: 31
  • PLSS Details: NE/4, SW/4
  • Map Unit: 851—Mckeonhills clay, 5 to 15 percent slopes
  • 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-H7—Bachelor Valley, California

    • PEDON

  • Describers Name: COS, JPO
  • Current Taxonomic Class: Very-fine, smectitic, thermic Aridic Haploxererts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Mckeonhills
  • PSC - 25 to 100 cm.
  • Classificaton Date - 1/22/2016
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - AYAR
  • Taxonomic Class - Very-fine, montmorillonitic, thermic Typic Chromoxererts
  • Classificaton Date - 3/2/2009
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Slope Complexity: simple
  • Drainage Class: well
  • Bedrock: sandstone, unspecified
  • Geology: Sandstone formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/2/2009 (entry creation date)
  • 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
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    weakly coherent

    86 - 198

    - 112 -

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

    mollic epipedon

    paralithic contact

    0—86

    86—198

    —-

    —-
    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

    —

    —

    114

    —

    45

    1651

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 5 centimeters (0.0 to 2.0 inches); dark gray (10YR 4/1), very dark brown (10YR 2/2), moist; clay; 13 percent sand; 29 percent silt; 59 percent clay; moderate fine subangular blocky structure; hard, friable, very sticky, very plastic; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 irregular and 3.0 vesicular pores; fragments; slight effervescence, by hcl, unspecified; neutral, pH 7.3, unspecified; clear smooth boundary. Lab sample # UCD04190
    A2—5 to 38 centimeters (2.0 to 15.0 inches); dark gray (10YR 4/1), very dark brown (10YR 2/2), moist; clay; 14 percent sand; 25 percent silt; 60 percent clay; massive; hard, friable, very sticky, very plastic; 0.5 fine roots throughout and 0.5 roots throughout; 0.5 pores; fragments; slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.5, unspecified; clear smooth boundary. Lab sample # UCD04191
    A3—38 to 66 centimeters (15.0 to 26.0 inches); dark gray (10YR 4/1), very dark grayish brown (10YR 3/2), moist; clay; 13 percent sand; 26 percent silt; 61 percent clay; massive; hard, friable, very sticky, very plastic; 0.5 fine roots throughout and 0.5 roots throughout; 0.5 pores; fragments; slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.6, unspecified; gradual smooth boundary. Lab sample # UCD04192
    AC—66 to 86 centimeters (26.0 to 33.9 inches); dark gray (10YR 4/1), dark brown (10YR 3/3), moist; clay; 13 percent sand; 26 percent silt; 61 percent clay; massive; hard, friable, very sticky, very plastic; 0.5 fine roots throughout and 0.5 roots throughout; 0.5 pores; fragments; strong effervescence, by hcl, unspecified; neutral, pH 7.0, unspecified; abrupt wavy boundary. Lab sample # UCD04193
    Cr—86 to 198 centimeters (33.9 to 78.0 inches); sand; fragments. Lab sample # UCD04194