IDENTIFIERS

  • Current Taxon Name (Soil Name): Threebear
  • OSD
  • Series Extent
  • User Site ID: S1970ID009002
  • User Pedon ID: 1970ID009002
  • Vegetation Plot ID: S1970ID009002
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 70C0002
  • NCSS Pedon Lab Data NASIS Record ID - 43783
  • 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: 47.2336121
  • Std. Longitude: -116.6572189
  • Datum: WGS84
  • Township: 45N
  • Range: 3W
  • Section: 24
  • PLSS Details: The site is 31 meters (100 feet) west of the road in the SW1/4NE1/4
  • Map Unit: 660—Threebear medial silt loam, 3 to 25 percent slopes
  • State: Idaho
  • County: ID009—Benewah
  • MLRA: 43A—Northern Rocky Mountains
  • Non-MLRA Soil Survey Area: ID608—St. Joe Area, Idaho, Parts of Benewah and Shoshone Counties
  • 7.5 Minute USGS Quad: 47116-B6—Alder Creek Flats, Idaho

    • PEDON

  • Describers Name: Willis J. Leighty
  • Current Taxonomic Class: Ashy over loamy, amorphic over mixed, superactive, frigid Oxyaquic Udivitrands
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Threebear
  • PSC - 6 to 106 cm.
  • Classificaton Date - 9/17/2012
  • Classifier - Brian Gardner
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Helmer
  • Taxon Kind - series
  • Classificaton Date - 7/22/1970
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash over Tertiary alluvium and/or loess
  • Landscape: foothills
  • Landform: ridge
  • Hill Slope Profile: summit
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: yes

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/22/1970 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - conifers
  • 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

    SPIRA

    THPL

    TSHE

    Spiraea

    Thuja plicata

    Tsuga heterophylla

    spirea

    western redcedar

    western hemlock

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    andic soil properties

    cambic horizon

    episaturation

    fragipan

    argillic horizon

    0—6

    6—54

    6—54

    54—87

    87—136

    87—136

    —-

    —-

    —-

    —-

    —-

    —-
    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

    —

    —

    951

    —

    90

    1010

    —

    —

    6

    —

    —

    7

    9

    —

    —

    —

    —

    —

    —
    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments; moderately acid, pH 5.6, chlorophenol red; abrupt wavy boundary.; moist when described;
    Oe—1 to 5 centimeters (0.4 to 2.0 inches); very dark brown (10YR 2/2), very dark grayish brown (10YR 3/2), dry; slightly decomposed plant material; 21.0 very fine and fine roots; fragments; slightly acid, pH 6.2, chlorophenol red; abrupt wavy boundary.
    Oa—5 to 6 centimeters (2.0 to 2.4 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; highly decomposed plant material; strong very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine and fine roots; 21.0 fine interstitial pores; fragments; moderately acid, pH 5.8, chlorophenol red; abrupt wavy boundary. Lab sample # 70C00008
    Bw1—6 to 24 centimeters (2.4 to 9.4 inches); brown (7.5YR 4/4), light yellowish brown (10YR 6/4), dry; ashy silt loam; strong very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine roots and 21.0 fine and medium roots and 3.0 coarse roots; 21.0 fine interstitial pores; fragments; moderately acid, pH 6.0, chlorophenol red; gradual wavy boundary. Lab sample # 70C00009
    Bw2—24 to 40 centimeters (9.4 to 15.7 inches); brown (7.5YR 4/4), light yellowish brown (10YR 6/4), dry; ashy silt loam; moderate very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine roots and 21.0 fine and medium roots; 21.0 very fine interstitial pores; fragments; moderately acid, pH 5.9, chlorophenol red; gradual wavy boundary. Lab sample # 70C00010
    Bw3—40 to 54 centimeters (15.7 to 21.3 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; medial silt loam; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 21.0 very fine roots and 21.0 fine and medium roots and 3.0 coarse roots; 21.0 very fine interstitial pores; fragments; moderately acid, pH 5.6, chlorophenol red; abrupt wavy boundary. Lab sample # 70C00011
    2E/Bx—54 to 87 centimeters (21.3 to 34.3 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; silt loam; weak very coarse prismatic parts to weak medium and coarse subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; 3.0 fine tubular pores; fragments; strongly acid, pH 5.2, bromcresol green; diffuse wavy boundary. Lab sample # 70C00012
    2Btx/E—87 to 113 centimeters (34.3 to 44.5 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; silt loam; weak very coarse prismatic parts to weak coarse subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; 3.0 fine tubular pores; light gray (10YR 7/1), dry, clay films; fragments; very strongly acid, pH 4.7, bromcresol green; abrupt wavy boundary. Lab sample # 70C00013. patchy - phpvsfiid 796318; patchy - phpvsfiid 796318
    2Btx—113 to 136 centimeters (44.5 to 53.5 inches); brown (7.5YR 4/4), light yellowish brown (10YR 6/4), dry; silt loam; weak very coarse prismatic structure; very hard, firm, moderately sticky, moderately plastic; 21.0 very fine tubular pores; clay films on vertical faces of peds; 3 percent reddish brown (5YR 5/3) dark concretions; fragments; very strongly acid, pH 4.6, bromcresol green. Lab sample # 70C00014. continuous - phpvsfiid 796319; continuous - phpvsfiid 796319