IDENTIFIERS

  • Current Taxon Name (Soil Name): MOUNTHOPE
  • OSD
  • Series Extent
  • User Site ID: 720-F
  • User Pedon ID: 720-F
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 01N0267
  • NCSS Pedon Lab Data NASIS Record ID - 14541
  • 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: 39.6094861
  • Std. Longitude: -121.4592222
  • Datum: WGS84
  • Township: 20N.
  • Range: 5E.
  • Section: 7
  • PLSS Details: approximately 1600 feet east and 1050 feet south of the northwest corner
  • Location Description: about 5.1 miles northeast of Oroville Dam
  • Map Unit: 557—Mounthope-Hartsmill , 15 to 30 percent slopes
  • State: California
  • County: CA007—Butte
  • MLRA: 18—Sierra Nevada Foothills
  • Non-MLRA Soil Survey Area: CA612—Butte Area, California, Parts of Butte and Plumas Counties
  • 7.5 Minute USGS Quad: 39121-E4—Oroville Dam, California

    • PEDON

  • Describers Name: Dean Burkett
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, thermic Ultic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - MOUNTHOPE
  • PSC - 8 to 58 cm.
  • Classificaton Date - 7/24/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Mounthope
  • Classificaton Date - 11/20/2000
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from metavolcanics over residuum weathered from metavolcanics
  • Landscape: foothills
  • Geomorphic Component Hills: nose slope
  • Drainage Class: well
  • Bedrock: metavolcanics at 52cm
  • Geology: Metavolcanics member of the Smartville formation.
  • Surface Fragments: 10.00 percent nonflat subangular 250- to 600-millimeter metavolcanics, 10.00 percent nonflat subangular 600- to 900-millimeter metavolcanics,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/20/2000 (actual site observation date)
  • Air Photo ID: 205-104
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - shrub cover
  • 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

    —

    132 -

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

    ochric epipedon

    argillic horizon

    paralithic contact

    3—8

    38—132

    132—

    —5—

    —94—

    —-
    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

    27

    —

    —

    500

    —

    155

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 8 centimeters (1.2 to 3.1 inches); brown (7.5YR 5/4), reddish brown (5YR 4/4), moist; loam; 33 percent sand; 49 percent silt; 20 percent clay; moderate medium subangular blocky parts to moderate fine granular structure; slightly hard, very friable, nonsticky, slightly plastic; 0.8 very fine roots throughout; 4.0 fine and medium interstitial pores; 5 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.5, pH meter; abrupt smooth boundary. Lab sample # 1P1587; slightly moist when described;
    Bt1—8 to 18 centimeters (3.1 to 7.1 inches); yellowish red (5YR 5/6), reddish brown (5YR 4/4), moist; loam; 31 percent sand; 50 percent silt; 24 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 0.8 medium roots throughout and 4.0 fine roots throughout and 7.0 coarse roots throughout; 0.8 medium tubular and 4.0 fine tubular pores; 5 percent distinct clay films on surfaces along pores and 20 percent distinct clay films on all faces of peds; 10 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.2, pH meter; abrupt smooth boundary. Lab sample # 1P1588; slightly moist when described;. discontinuous - phpvsfiid 207541; discontinuous - phpvsfiid 207542; discontinuous - phpvsfiid 207541; discontinuous - phpvsfiid 207542
    Bt2—18 to 38 centimeters (7.1 to 15.0 inches); yellowish red (5YR 5/6), reddish brown (5YR 4/4), moist; loam; 31 percent sand; 50 percent silt; 26 percent clay; moderate medium subangular blocky structure; hard, friable, slightly sticky, moderately plastic; 4.0 fine and medium roots throughout and 0.8 coarse roots throughout; 4.0 fine tubular pores; 10 percent distinct clay films on surfaces along pores and 20 percent distinct clay films on all faces of peds; 5 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.2, pH meter; clear wavy boundary. Lab sample # 1P1589; slightly moist when described;. discontinuous - phpvsfiid 207543; discontinuous - phpvsfiid 207544; discontinuous - phpvsfiid 207543; discontinuous - phpvsfiid 207544
    Bt3—38 to 56 centimeters (15.0 to 22.0 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; gravelly clay loam; 30 percent sand; 47 percent silt; 28 percent clay; moderate medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 0.8 fine and medium roots throughout; 4.0 fine and medium tubular pores; 10 percent distinct clay films on surfaces along pores and 25 percent distinct clay films on all faces of peds; 25 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.3, pH meter; gradual wavy boundary. Lab sample # 1P1590; slightly moist when described;. discontinuous - phpvsfiid 207545; discontinuous - phpvsfiid 207546; discontinuous - phpvsfiid 207545; discontinuous - phpvsfiid 207546
    Bt4—56 to 66 centimeters (22.0 to 26.0 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; gravelly clay loam; 33 percent sand; 43 percent silt; 29 percent clay; moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.8 fine and medium roots throughout; 0.8 fine tubular pores; 10 percent distinct clay films on surfaces along pores and 35 percent distinct clay films on all faces of peds; 30 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.3, pH meter; gradual wavy boundary. Lab sample # 191591; slightly moist when described;. discontinuous - phpvsfiid 207547; discontinuous - phpvsfiid 207548; discontinuous - phpvsfiid 207547; discontinuous - phpvsfiid 207548
    Bt5—66 to 79 centimeters (26.0 to 31.1 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; very gravelly clay loam; 38 percent sand; 35 percent silt; 31 percent clay; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.8 fine and medium roots throughout; 4.0 fine and medium tubular pores; 15 percent distinct clay films on surfaces along pores and 35 percent distinct clay films on all faces of peds; 50 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.4, pH meter; gradual wavy boundary. Lab sample # 1P1592; slightly moist when described;. discontinuous - phpvsfiid 207549; discontinuous - phpvsfiid 207550; discontinuous - phpvsfiid 207549; discontinuous - phpvsfiid 207550
    Bt6—79 to 107 centimeters (31.1 to 42.1 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; very gravelly clay loam; 30 percent sand; 42 percent silt; 28 percent clay; moderate fine subangular blocky structure; slightly hard, firm, moderately sticky, moderately plastic; 0.8 fine roots throughout; 0.8 fine tubular pores; 10 percent distinct clay films on surfaces along pores and 35 percent distinct clay films on all faces of peds; 50 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.3, pH meter; clear smooth boundary. Lab sample # 1P1593; slightly moist when described;. discontinuous - phpvsfiid 207551; discontinuous - phpvsfiid 207552; discontinuous - phpvsfiid 207551; discontinuous - phpvsfiid 207552
    Bt7—107 to 132 centimeters (42.1 to 52.0 inches); reddish yellow (5YR 6/6), yellowish red (5YR 4/6), moist; gravelly clay loam; 33 percent sand; 37 percent silt; 30 percent clay; weak fine subangular blocky structure; slightly hard, firm, moderately sticky, moderately plastic; 0.8 fine roots throughout; 0.8 fine tubular pores; 5 percent distinct clay films on surfaces along pores and 15 percent distinct clay films on all faces of peds; 30 percent by volume nonflat subangular 2-?-75 millimeter metavolcanics fragments; slightly acid, pH 6.4, pH meter; gradual smooth boundary. Lab sample # 1P1594; slightly moist when described;. discontinuous - phpvsfiid 207553; discontinuous - phpvsfiid 207554; discontinuous - phpvsfiid 207553; discontinuous - phpvsfiid 207554
    Cr—132 centimeters (52.0 inches); bedrock; fragments.