IDENTIFIERS

  • Current Taxon Name (Soil Name): Half Moon
  • OSD
  • Series Extent
  • User Site ID: S2002MT619005
  • User Pedon ID: 98MT029004
  • Vegetation Plot ID: S2002MT619005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 02N0581
  • NCSS Pedon Lab Data NASIS Record ID - 14677
  • Print Date: 4/25/2025

    • 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: 48.3903618
  • Std. Longitude: -114.4421692
  • Datum: WGS84
  • Township: 30N
  • Range: 22W
  • Section: 6
  • PLSS Details: 2800 feet south and 900 feet west of NE corner
  • Map Unit: Ha—Half Moon silt loam, 0 to 3 percent slopes
  • State: Montana
  • County: MT029—Flathead
  • MLRA: 44A—Northern Rocky Mountain Valleys
  • Non-MLRA Soil Survey Area: MT617—Upper Flathead Valley Area, Montana

    • PEDON

  • Describers Name: Tia Leschin
  • Current Taxonomic Class: Fine-silty, mixed, active, frigid Vitrandic Glossudalfs
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 5
  • Sampled As Information:
  • Soil Name - Half Moon
  • Taxonomic Class - Fine-silty, mixed, active, frigid Vitrandic Glossudalfs
  • PSC - 43 to 84 cm.
  • Classificaton Date - 8/27/1998
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture SUBClass - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: volcanic ash over mixed calcareous lacustrine deposits
  • Landscape: glaciated valley
  • Geomorphic Component Terraces: tread
  • Hill Slope Profile: summit
  • Slope Position: middle third
  • Slope Complexity: complex
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/27/1998 (actual site observation date)
  • Plant Association Name: PICEA/ VACA
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • 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

    PICEA

    PSME

    PICO

    LAOC

    ABLA

    ARNU2

    CLUN2

    COCA13

    GATR3

    SMRA

    SYAL

    VACA13

    LIBO3

    JUHO2

    ROSA

    BERE

    ARUV

    CARU

    Picea

    Pseudotsuga menziesii

    Pinus contorta

    Larix occidentalis

    Abies lasiocarpa

    Aralia nudicaulis

    Clintonia uniflora

    Cornus canadensis

    Galium triflorum

    Smilacina racemosa

    Symphoricarpos albus

    Vaccinium caespitosum

    Linnaea borealis

    Juniperus horizontalis

    Rorippa sarmentosa

    Berberis repens

    Arctostaphylos uva-ursi

    Calamagrostis rubescens

    spruce

    Douglas-fir

    lodgepole pine

    western larch

    subalpine fir

    wild sarsaparilla

    bride's bonnet

    bunchberry dogwood

    fragrant bedstraw

    —

    common snowberry

    dwarf bilberry

    twinflower

    creeping juniper

    longrunner

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    kinnikinnick

    pinegrass

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

    argillic horizon

    43—84

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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

    2

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    917

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    160

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    Oi—0 to 5 centimeters (0.0 to 2.0 inches); 10 percent clay; slightly hard, friable, slightly sticky, nonplastic; moderate permeability; fragments; noneffervescent, by hcl, 1n; moderately acid, pH 6.0; abrupt smooth boundary.; slightly dry when described; observed in push tube
    E—5 to 10 centimeters (2.0 to 3.9 inches); dark grayish brown (10YR 4/2) crushed, light brownish gray (10YR 6/2) crushed, dry; silt loam; 10 percent clay; weak very fine subangular blocky structure; soft, very friable, slightly sticky, nonplastic; moderate permeability; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.2; clear smooth boundary. Lab sample # 02N02886; slightly dry when described; observed in push tube
    Bw—10 to 25 centimeters (3.9 to 9.8 inches); brown (10YR 4/3) broken face, light gray (10YR 7/2) broken face, dry; silt loam; 10 percent clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; moderate permeability; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; moderately acid, pH 6.0; clear smooth boundary. Lab sample # 02N02887; moist when described; observed in push tube
    2E/Bw—25 to 43 centimeters (9.8 to 16.9 inches); 20 percent dark yellowish brown (10YR 4/4) broken face, 20 percent light yellowish brown (10YR 6/4) broken face, dry; silt loam; 15 percent clay; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 6.8; gradual smooth boundary. Lab sample # 02N02888; moist when described; observed in push tube
    2E/Bw—25 to 43 centimeters (9.8 to 16.9 inches); 80 percent light yellowish brown (2.5Y 6/3) broken face, 80 percent pale yellow (2.5Y 8/2) broken face, dry; silt loam; 15 percent clay; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 6.8; gradual smooth boundary. Lab sample # 02N02888; moist when described; observed in push tube
    2Bt/E—43 to 66 centimeters (16.9 to 26.0 inches); 60 percent dark yellowish brown (10YR 4/4) broken face, 60 percent light yellowish brown (10YR 6/4) broken face, dry; silt loam; 20 percent clay; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 10 percent faint clay films on surfaces along pores; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 7.0; gradual smooth boundary. Lab sample # 02N02889; moist when described; observed in push tube. patchy - phpvsfiid 242588; patchy - phpvsfiid 242588
    2Bt/E—43 to 66 centimeters (16.9 to 26.0 inches); 40 percent light yellowish brown (2.5Y 6/3) broken face, 40 percent pale yellow (2.5Y 8/2) broken face, dry; silt loam; 20 percent clay; moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; ; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 7.0; gradual smooth boundary. Lab sample # 02N02889; moist when described; observed in push tube
    2Bt—66 to 84 centimeters (26.0 to 33.1 inches); dark yellowish brown (10YR 4/4) broken face, light yellowish brown (10YR 6/4) broken face, dry; very fine sandy loam; 17 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 26 percent distinct clay films on surfaces along pores; 10 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; neutral, pH 7.2; gradual smooth boundary. Lab sample # 02N02890; moist when described; observed in push tube. discontinuous - phpvsfiid 242587; discontinuous - phpvsfiid 242587
    2Bk—84 to 99 centimeters (33.1 to 39.0 inches); light olive brown (2.5Y 5/3) broken face, pale yellow (2.5Y 7/3) broken face, dry; very fine sandy loam; 12 percent clay; moderate fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; moderate permeability; 1 percent fine faint irregular carbonate masses lining pores; 5 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6; gradual smooth boundary. Lab sample # 02N02891; moist when described; observed in push tube
    2C—99 to 188 centimeters (39.0 to 74.0 inches); light yellowish brown (2.5Y 6/3) broken face, pale yellow (2.5Y 8/2) broken face, dry; silt loam; 12 percent clay; structureless massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 5 percent by volume nonflat subrounded 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6. Lab sample # 02N02892; moist when described; observed in push tube