IDENTIFIERS

  • Current Taxon Name (Soil Name): STUMP SPRINGS
  • OSD
  • Series Extent
  • User Site ID: S1972-CA-53-007x
  • User Pedon ID: 72-CA-53-007x
  • Vegetation Plot ID: S1972-CA-53-007x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD7253007
  • NCSS Pedon Lab Data NASIS Record ID - 42261
  • 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: 40.6676941
  • Std. Longitude: -122.8029022
  • Datum: WGS84
  • Township: 33N
  • Range: 8W
  • Section: 32
  • PLSS Details: SW/4, SN/4
  • State: California
  • County: CA105—Trinity
  • MLRA: 5—Siskiyou-Trinity Area
  • Non-MLRA Soil Survey Area: CA606—Trinity County, California, Weaverville Area
  • 7.5 Minute USGS Quad: 40122-F7—Lewiston, California

    • PEDON

  • Describers Name: JIM, SBJ, JMcC
  • Current Taxonomic Class: Fine-loamy, mixed, mesic Mollic Haploxeralfs
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - STUMP SPRINGS
  • Taxonomic Class - Fine-loamy, mixed, mesic Mollic Haploxeralfs
  • Classificaton Date - 2/27/2009
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Slope Complexity: complex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Bedrock: diorite
  • Geology: Granodiorite. Geologic Formati formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/27/2009 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, savanna
  • 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

    PIPO

    Pinus ponderosa

    ponderosa pine

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    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

    40

    —

    —

    747

    —

    135

    1524

    —

    —

    12.8

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    O1—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Lab sample # UCD01521
    A1—3 to 16 centimeters (1.2 to 6.3 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; coarse sandy loam; weak medium subangular blocky parts to weak fine subangular blocky structure; slightly hard, very friable; 21.0 very fine roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; fragments; moderately acid, pH 5.7; clear smooth boundary. Lab sample # UCD01522
    B1—16 to 51 centimeters (6.3 to 20.1 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; coarse sandy loam; weak medium subangular blocky parts to weak fine subangular blocky structure; slightly hard, very friable; 3.0 medium roots throughout and 3.0 fine roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; fragments; moderately acid, pH 5.6; clear smooth boundary. Lab sample # UCD01523
    B21t—51 to 67 centimeters (20.1 to 26.4 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; coarse sandy loam; weak medium subangular blocky structure; hard, friable, nonsticky, slightly plastic; 3.0 medium roots throughout and 3.0 fine roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; 10 percent clay films on surfaces along pores; fragments; strongly acid, pH 5.5; clear smooth boundary. Lab sample # UCD01524
    B22t—67 to 107 centimeters (26.4 to 42.1 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 3/4), moist; sandy clay loam; massive; very hard, friable, slightly sticky, slightly plastic; 3.0 medium roots throughout and 3.0 coarse roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; 30 percent clay films on surfaces along pores; fragments; strongly acid, pH 5.5; gradual boundary. Lab sample # UCD01525
    B3—107 to 122 centimeters (42.1 to 48.0 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; coarse sandy loam; massive; hard, friable; 3.0 medium roots throughout and 3.0 coarse roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; fragments; strongly acid, pH 5.5; gradual boundary. Lab sample # UCD01526
    Cr—122 to 178 centimeters (48.0 to 70.1 inches); dark yellowish brown (10YR 3/4) sandy clay loam; 0.5 medium roots throughout and 0.5 coarse roots throughout; 21.0 very fine irregular and 21.0 fine irregular pores; fragments; strongly acid, pH 5.5. Lab sample # UCD01527