IDENTIFIERS

  • Current Taxon Name (Soil Name): La Posta
  • OSD
  • Series Extent
  • User Site ID: S1960CA073003
  • User Pedon ID: S1960CA073003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2969
  • NCSS Pedon Lab Data NASIS Record ID - 38098
  • Print Date: 11/12/2024

    • 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: 33.2105560
  • Std. Longitude: -116.5022202
  • Datum: WGS84
  • Township: 11S
  • Range: 5E
  • Section: 18
  • PLSS Details: Approximately 1000 feet west of southeast corner
  • Location Description: 75 feet north of Montezuma Valley Road at entrance to Chimney Rock Ranch.
  • State: California
  • County: CA073—San Diego
  • MLRA: 19—Southern California Coastal Plains and Mountains
  • Non-MLRA Soil Survey Area: CA638—San Diego County Area, California

    • PEDON

  • Describers Name: George Borst
  • Current Taxonomic Class: Mixed, mesic, shallow Typic Xeropsamments
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - La Posta
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Laposta
  • Classificaton Date - 11/9/1960
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: somewhat excessively
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/9/1960 (actual site observation 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
    • 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

    —

    —

    1265

    —

    432

    —

    —

    13.9

    22.8

    6.7

    —

    —

    —

    —

    —

    —

    —

    —
    A11—0 to 4 centimeters (0.0 to 1.6 inches); light gray (10YR 7/2) and very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; loamy coarse sand; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 fine roots; fragments; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 40A23394. micaceous.
    A12—4 to 15 centimeters (1.6 to 5.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; loamy coarse sand; weak fine granular structure; soft, friable, nonsticky, nonplastic; 21.0 fine pores; fragments; slightly acid, pH 6.2, hellige-truog; abrupt wavy boundary. Lab sample # 40A23395
    C1—15 to 48 centimeters (5.9 to 18.9 inches); brown (10YR 4/3) and pale brown (10YR 6/3) and black (10YR 2/1), brown (10YR 5/3) and very pale brown (10YR 7/3) and dark gray (10YR 4/1), dry; loamy coarse sand; massive; hard when dry, friable, nonsticky, nonplastic; 21.0 medium roots; 3.0 fine tubular pores; fragments; moderately acid, pH 6.0, hellige-truog; gradual smooth boundary. Lab sample # 40A23396. colloid in bridges between mineral grains; micaceous.
    C2—48 to 76 centimeters (18.9 to 29.9 inches); brown (10YR 4/3) and pale brown (10YR 6/3) and very dark gray (10YR 3/1), brown (10YR 5/3) and very pale brown (10YR 7/3) and dark gray (10YR 4/1), dry; loamy coarse sand; massive; hard when dry, friable, nonsticky, nonplastic; 0.5 medium roots; fragments; moderately acid, pH 6.0, hellige-truog; gradual smooth boundary. Lab sample # 40A23397
    C3—76 to 122 centimeters (29.9 to 48.0 inches); pale brown (10YR 6/3) and brown (10YR 4/3) and very dark gray (10YR 3/1), very pale brown (10YR 7/3) and brown (10YR 5/3) and dark gray (10YR 4/1), dry; coarse sand; massive; hard when dry, friable, nonsticky, nonplastic; 0.1 coarse roots; fragments; moderately acid, pH 6.0, hellige-truog. Lab sample # 40A23398