IDENTIFIERS

  • Current Taxon Name (Soil Name): Threebear
  • OSD
  • Series Extent
  • User Site ID: 79-RJB-010
  • User Pedon ID: 79ID610010
  • Vegetation Plot ID: 79610010
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - UIdaho
  • Lab Pedon # - 76-ID-2958
  • NCSS Pedon Lab Data NASIS Record ID - 80037
  • 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: 46.8568694
  • Std. Longitude: -116.6063917
  • Datum: WGS84
  • Township: 41 N.
  • Range: 2 W.
  • Section: 33
  • PLSS Details: about 2,490 feet south and 400 feet east of the northwest corner
  • State: Idaho
  • County: ID057—Latah
  • MLRA: 43A—Northern Rocky Mountains
  • Regional Office: NW—Northwest
  • MLRA Soil Survey Area: NW-MOS—Moscow, Idaho
  • Non-MLRA Soil Survey Area: ID610—Latah County Area, Idaho
  • PEDON

  • Describers Name: Neil Peterson and Mark Johnson
  • Current Taxonomic Class: Medial over loamy, amorphic over mixed, superactive, frigid Oxyaquic Udivitrands
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: PedonPC
  • Correlated Information:
  • Soil Name - Threebear
  • PSC - 99 to 150 cm.
  • Classificaton Date - 9/19/2012
  • Classifier - Brian Gardner
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Helmer
  • Classificaton Date - 12/3/2008
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


  • SITE

  • Parent Material: volcanic ash over loess
  • Landscape: upland
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: yes
  • VEGETATION

  • Other Vegetative Class: CN530 - western redcedar/queencup beadlily—Forest Habitat Types of Northern Idaho (GTR-INT-236)
  • SITE OBSERVATION

  • Observation Date: 8/12/1976 (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

    ABGR

    ADBI

    AMAL2

    ANPI

    BRVU

    CLUN2

    COCA13

    COOC

    LAOC

    LIBO3

    PIPO

    PSMEG

    PYSE

    ROGY

    SMST

    SYAL

    Abies grandis

    Adenocaulon bicolor

    Amelanchier alnifolia

    Anemone piperi

    Bromus vulgaris

    Clintonia uniflora

    Cornus canadensis

    Coptis occidentalis

    Larix occidentalis

    Linnaea borealis

    Pinus ponderosa

    Pseudotsuga menziesii var. glauca

    Pyrola secunda

    Rosa gymnocarpa

    Smilacina stellata

    Symphoricarpos albus

    grand fir

    American trailplant

    Saskatoon serviceberry

    Piper's anemone

    Columbia brome

    bride's bonnet

    bunchberry dogwood

    Idaho goldthread

    western larch

    twinflower

    ponderosa pine

    Rocky Mountain Douglas-fir

    dwarf rose

    common snowberry

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

    fragipan

    noncoherent

    99 - 152

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

    ochric epipedon

    andic soil properties

    cambic horizon

    argillic horizon

    fragipan

    0—13

    5—46

    13—46

    74—152

    99—152

    —-

    —-

    —-

    —-

    —-

    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

    12

    884

    838

    90

    5.6

    Oi1—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments. Lab sample # ID29581. undecomposed needles, twigs and moss
    Oi2—3 to 4 centimeters (1.2 to 1.6 inches); slightly decomposed plant material; fragments. Lab sample # ID29582. partially decomposed needles, twigs and moss
    Oe—4 to 5 centimeters (1.6 to 2.0 inches); moderately decomposed plant material; fragments. Lab sample # ID29583. decomposed needles, twigs roots, leaves and moss
    A—5 to 13 centimeters (2.0 to 5.1 inches); dark brown (7.5YR 3/3), yellowish brown (10YR 5/4), dry; medial silt loam; weak fine granular structure; soft, very friable, nonsticky, nonplastic; 5.0 medium roots and 5.0 fine roots; 5.0 very fine interstitial and 5.0 fine interstitial pores; fragments; noneffervescent; neutral, pH 7.0; clear wavy boundary. Lab sample # ID29584
    Bw1—13 to 30 centimeters (5.1 to 11.8 inches); brown (7.5YR 4/4), brown (7.5YR 5/4), dry; medial silt loam; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 5.0 very fine roots and 3.0 medium roots and 5.0 fine roots and 3.0 coarse roots; 5.0 very fine interstitial and 5.0 fine interstitial pores; fragments; noneffervescent; neutral, pH 7.0; gradual wavy boundary. Lab sample # ID29585
    Bw2—30 to 46 centimeters (11.8 to 18.1 inches); brown (10YR 4/3), brown (7.5YR 5/4), dry; medial silt loam; weak coarse subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 3.0 medium roots and 3.0 fine roots and 3.0 coarse roots; 5.0 very fine tubular and 5.0 fine tubular pores; fragments; noneffervescent; moderately acid, pH 5.8; abrupt wavy boundary. Lab sample # ID29586
    2E—46 to 74 centimeters (18.1 to 29.1 inches); brown (10YR 5/3), light yellowish brown (10YR 6/4), dry; silt loam; massive; hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots; 3.0 fine tubular pores; 10 percent fine iron-manganese concretions; fragments; noneffervescent; moderately acid, pH 5.8; clear wavy boundary. Lab sample # ID29587
    2Bx/E—74 to 99 centimeters (29.1 to 39.0 inches); yellowish brown (10YR 5/4) and light yellowish brown (10YR 6/4), reddish yellow (7.5YR 6/6) and very pale brown (10YR 7/4), dry; silt loam; moderate medium prismatic parts to weak fine angular blocky structure; very hard, very firm, slightly sticky, slightly plastic; 0.2 fine roots between peds; 3.0 fine tubular pores; 1 percent fine iron-manganese concretions; fragments; noneffervescent; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # ID29588
    2Btx1—99 to 140 centimeters (39.0 to 55.1 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; silty clay loam; moderate medium prismatic parts to weak fine angular blocky structure; extremely hard, extremely firm, moderately sticky, moderately plastic; 0.2 fine roots between peds; 3.0 medium tubular and 3.0 fine tubular pores; 15 percent silt coats on all faces of peds and 15 percent organic stains on all faces of peds and 70 percent clay films on all faces of peds and 70 percent clay films on surfaces along pores; 1 percent fine iron-manganese concretions; fragments; noneffervescent; strongly acid, pH 5.3; clear wavy boundary. Lab sample # ID29589
    2Btx2—140 to 152 centimeters (55.1 to 59.8 inches); brown (7.5YR 4/4), strong brown (7.5YR 5/6), dry; silt loam; weak very coarse prismatic parts to weak fine angular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.2 fine roots between peds; 3.0 medium tubular and 3.0 fine tubular pores; 15 percent silt coats on all faces of peds and 15 percent organic stains on all faces of peds and 35 percent clay films on all faces of peds; 1 percent fine iron-manganese concretions; fragments; noneffervescent; strongly acid, pH 5.3. Lab sample # ID295810