IDENTIFIERS

  • Current Taxon Name (Soil Name): RED HILL
  • OSD
  • Series Extent
  • User Site ID: S1962-CA-49-004x
  • User Pedon ID: 62-CA-49-004x
  • Vegetation Plot ID: S1962-CA-49-004x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD6249004
  • NCSS Pedon Lab Data NASIS Record ID - 42019
  • 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: 38.6964722
  • Std. Longitude: -122.8740997
  • Datum: WGS84
  • Township: 10N
  • Range: 9W
  • Section: 16
  • PLSS Details: SW/4, SE/4
  • State: California
  • County: CA097—Sonoma
  • MLRA: 14—Central California Coastal Valleys
  • Non-MLRA Soil Survey Area: CA097—Sonoma County, California
  • 7.5 Minute USGS Quad: 38122-F7—Jimtown, California

    • PEDON

  • Describers Name: BFS, PJZ, JAD, NLC, GB
  • Current Taxonomic Class: Fine, mixed, mesic Ultic Palexeralfs
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - RED HILL
  • Taxonomic Class - Fine, mixed, mesic Ultic Palexeralfs
  • Classificaton Date - 10/21/2008
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Slope Complexity: simple
  • Drainage Class: well
  • Bedrock: ultramafic, unspecified
  • Geology: Olivine Basalt. Geologic Forma formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/21/2008 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    PTAQ

    Pteridium aquilinum

    western brackenfern

    —

    —

    —
    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

    23

    —

    —

    274

    —

    225

    1270

    —

    —

    13.9

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A11—0 to 3 centimeters (0.0 to 1.2 inches); reddish brown (5YR 4/4), dark reddish brown (5YR 3/4), moist; clay loam; subangular blocky structure; 21.0 very fine roots throughout; 21.0 very fine irregular pores; fragments; slightly acid, pH 6.5; clear wavy boundary. Lab sample # UCD02983
    A12—3 to 13 centimeters (1.2 to 5.1 inches); reddish brown (5YR 4/4), dark reddish brown (5YR 3/4), moist; clay loam; massive; hard, friable, moderately plastic; 21.0 very fine roots throughout; 21.0 very fine irregular pores; fragments; neutral, pH 6.6; clear wavy boundary. Lab sample # UCD02984
    B1t—13 to 43 centimeters (5.1 to 16.9 inches); reddish brown (5YR 4/4), dark reddish brown (2.5YR 3/4), moist; clay; massive; hard, friable, slightly plastic; 21.0 very fine roots throughout and 3.0 fine roots throughout; 21.0 medium irregular pores; fragments; moderately acid, pH 6.0; clear wavy boundary. Lab sample # UCD02985
    B21t—43 to 112 centimeters (16.9 to 44.1 inches); reddish brown (2.5YR 4/4), dark reddish brown (2.5YR 3/4), moist; clay; massive; hard, firm, slightly plastic; 3.0 very fine roots throughout and 3.0 medium roots throughout and 3.0 coarse roots throughout; 21.0 very fine irregular pores; 30 percent clay films on surfaces along pores and 30 percent clay films between sand grains; fragments; slightly acid, pH 6.1; diffuse wavy boundary. Lab sample # UCD02986
    B22t—112 to 163 centimeters (44.1 to 64.2 inches); red (2.5YR 4/6), dark red (2.5YR 3/6), moist; clay; moderate coarse angular blocky structure; extremely hard, firm, very plastic; 0.5 medium roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 0.5 fine tubular pores; 75 percent clay films on all faces of peds and 75 percent clay films on surfaces along pores; fragments; slightly acid, pH 6.4; clear wavy boundary. Lab sample # UCD02987
    B23t—163 to 163 centimeters (64.2 to 64.2 inches); red (2.5YR 4/6), dark red (2.5YR 3/6), moist; gravelly clay; moderate coarse angular blocky structure; very hard, firm, very sticky, very plastic; 0.5 roots throughout; 21.0 fine tubular pores; 75 percent clay films on all faces of peds and 75 percent clay films on surfaces along pores; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; slightly acid, pH 6.3. Lab sample # UCD02988