IDENTIFIERS

  • Current Taxon Name (Soil Name): Highpeaks
  • OSD
  • Series Extent
  • User Site ID: S05CA069007
  • User Pedon ID: PINN022
  • Vegetation Plot ID: S05CA069007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 06N0206
  • NCSS Pedon Lab Data NASIS Record ID - 18938
  • Print Date: 2/17/2025

    • 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: 36.4824722
  • Std. Longitude: -121.1712222
  • Datum: WGS84
  • Township: 17S
  • Range: 7E
  • Section: 2
  • PLSS Details: 50 meters west and 620 meters south of the northeast corner
  • Location Description: 545 meters west of the Bench Trail along the Bear Gulch Trail and 10 meters south of this trail
  • Map Unit: SkG3—Sheridan coarse sandy loam, 30 to 75 percent slopes, severely eroded105—Chalone-Firstsister-Highpeaks complex, 50 to 70 percent slopes
  • Country: US—United States
  • State: California
  • County: CA069—San Benito
  • MLRA: 15—Central California Coast Range
  • Non-MLRA Soil Survey Area: CA069—San Benito County, CaliforniaCA788—Pinnacles National Monument, California
  • 7.5 Minute USGS Quad: 36121-D2—North Chalone Peak, California

    • PEDON

  • Describers Name: Ken Oster and Valerie Bullard
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, thermic Lithic Haploxerolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Highpeaks
  • PSC - 29 to 53 cm.
  • Classificaton Date - 7/27/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Highpeaks
  • Classificaton Date - 1/20/2005
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from andesite
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: andesite at 53cm with <10
  • Surface Fragments: 5.00 percent 250- to 600-millimeter
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/20/2005 (actual site observation date)
  • Air Photo ID: 12452-172
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - shrub cover
  • Site Obs. Cover Kind 2 - native shrubs
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
  • Current Air Temp - 15
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    2GA

    CECU

    PRIL

    —

    Ceanothus cuneatus

    Prunus ilicifolia

    Grass, annual

    buckbrush

    hollyleaf cherry

    —

    —

    —

    —

    —

    —

    —

    —

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

    bedrock, lithic

    —

    53 -

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

    mollic epipedon

    paralithic contact

    lithic contact

    4—34

    14—21

    21—

    —-

    —-

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

    1/20/2005

    50

    —

    9
    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

    50

    —

    —

    344

    —

    355

    432

    —

    250

    15

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 4 centimeters (0.0 to 1.6 inches); slightly decomposed plant material; fragments; clear wavy boundary.; observed in pit, small
    A1—4 to 12 centimeters (1.6 to 4.7 inches); dark gray (10YR 4/1), black (10YR 2/1), moist; gravelly sandy loam; 15 percent clay; weak fine subangular blocky structure; very friable, slightly sticky, nonplastic; 5.0 very fine roots throughout; 6.0 very fine irregular pores; 15 percent by volume nonflat subangular indurated 5-?-20 millimeter andesite fragments and 15 percent by volume nonflat subangular indurated 2-?-5 millimeter andesite fragments; neutral, pH 7.2, pH meter; clear wavy boundary. Lab sample # 06N00742; moist when described; observed in pit, small
    A2—12 to 34 centimeters (4.7 to 13.4 inches); dark gray (10YR 4/1), black (10YR 2/1), moist; very gravelly sandy loam; 15 percent clay; weak fine subangular blocky structure; friable, slightly sticky, nonplastic; 3.0 very fine roots throughout and 2.0 fine roots throughout; 8.0 very fine irregular pores; 10 percent by volume nonflat subangular indurated 20-?-75 millimeter andesite fragments and 10 percent by volume nonflat subangular indurated 5-?-20 millimeter andesite fragments and 20 percent by volume nonflat subangular indurated 2-?-5 millimeter andesite fragments; slightly alkaline, pH 7.4, pH meter; clear wavy boundary. Lab sample # 06N00743; moist when described; observed in pit, small
    Cr—34 to 53 centimeters (13.4 to 20.9 inches); fragments. Lab sample # 06N00744; observed in pit, small
    R—53 centimeters (20.9 inches); fragments.; observed in pit, small