IDENTIFIERS

  • Current Taxon Name (Soil Name): Lapwai
  • OSD
  • Series Extent
  • User Site ID: S2017ID061003
  • User Pedon ID: S2017ID061003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 18N0068
  • Print Date: 12/9/2025

    • 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: 46.2249083
  • Std. Longitude: -116.0214833
  • Datum: WGS84
  • Township: 33N
  • Range: 3E
  • Section: 1
  • Map Unit: 70—Lapwai-Bridgewater complex, 1 to 7 percent slopes
  • State: Idaho
  • County: ID061—Lewis
  • MLRA: 43A—Northern Rocky Mountains
  • Regional Office: NW—Northwest
  • MLRA Soil Survey Area: NW-MOS—Moscow, Idaho
  • 7.5 Minute USGS Quad: 46116-B1—Kamiah, Idaho

    • PEDON

  • Describers Name: Brian Gardner
  • Current Taxonomic Class: Coarse-loamy, mixed, mesic Cumulic Haploxerolls
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Lapwai
  • Taxonomic Class - Coarse-loamy, mixed, mesic Cumulic Haploxerolls
  • Taxon Kind - series
  • Classificaton Date - 9/11/2017
  • Classifier - Brian Gardner
  • Moisture Class - xeric
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Landscape: river valley
  • Landform: flood plain
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: very rare flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/11/2017 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    1

    —

    —

    368

    —

    345

    585

    —

    155

    11.1

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    Ap1—0 to 9 centimeters (0.0 to 3.5 inches); grayish brown (10YR 5/2), very dark brown (10YR 2/2), moist; silt loam; 19 percent clay; strong fine granular structure; moderately hard, friable, slightly sticky, moderately plastic; 3.0 very fine roots and 1.0 medium roots and 4.0 fine roots; 3.0 very fine irregular pores; 3 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; slightly acid, pH 6.2, pH meter; clear smooth boundary. Lab sample # 18N00458. bulk density by core - 331cc wt <19mm=10.5 lbs; 19-75mm=0.25 lbs; >75mm=0 lbs all weight values have tare subtracted
    Ap2—9 to 22 centimeters (3.5 to 8.7 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; silt loam; 23 percent clay; moderate fine subangular blocky parts to strong fine granular structure; moderately hard, friable, slightly sticky, moderately plastic; 2.0 very fine roots and 1.0 medium roots and 2.0 fine roots and 0.5 coarse roots; 2.0 very fine tubular and 3.0 very fine irregular pores; 8 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; moderately acid, pH 5.8, pH meter; clear smooth boundary. Lab sample # 18N00459. bulk density by core - 331cc wt <19mm=8.5 lbs; 19-75mm=0.15 lbs; >75mm=0 lbs all weight values have tare subtracted
    A—22 to 34 centimeters (8.7 to 13.4 inches); brown (10YR 5/3), very dark grayish brown (10YR 3/2), moist; silt loam; 25 percent clay; moderate fine subangular blocky parts to strong fine granular structure; moderately hard, friable, slightly sticky, very plastic; 2.0 very fine roots and 0.5 medium roots and 2.0 fine roots; 3.0 very fine irregular and 1.0 fine tubular pores; 10 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; moderately acid, pH 5.6, pH meter; clear wavy boundary. Lab sample # 18N00460. bulk density by core - 331cc wt <19mm=11 lbs; 19-75mm=0.25 lbs; >75mm=0 lbs all weight values have tare subtracted
    AB—34 to 54 centimeters (13.4 to 21.3 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; silt loam; 25 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; hard, friable, moderately sticky, very plastic; 1.0 very fine roots and 0.2 medium roots and 0.5 fine roots; 3.0 very fine irregular pores; 10 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; moderately acid, pH 6.0, pH meter; clear wavy boundary. Lab sample # 18N00461. bulk density by core - 331cc wt <19mm=10 lbs; 19-75mm=1.5 lbs; >75mm=0 lbs all weight values have tare subtracted
    Bt—54 to 88 centimeters (21.3 to 34.6 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 3/4), moist; very gravelly silty clay loam; 28 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; hard, firm, moderately sticky, very plastic; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 1.0 very fine tubular and 3.0 very fine irregular pores; 35 percent prominent clay films on all faces of peds; 45 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; strongly acid, pH 5.5, pH meter; clear wavy boundary. Lab sample # 18N00462. bulk density by compliant cavity - 185cc wt <19mm=12 lbs; 19-75mm= 9 lbs; >75mm=0 lbs all weight values have tare subtracted
    BC—88 to 113 centimeters (34.6 to 44.5 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; extremely gravelly sandy clay loam; 20 percent clay; weak fine subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 0.2 very fine roots and 0.2 medium roots and 0.2 fine roots; 2.0 very fine irregular pores; 15 percent prominent clay films on bottom of rock fragments and 15 percent prominent silica coats on bottom of rock fragments and 15 percent prominent silica coats on bottom of rock fragments; 70 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; slightly acid, pH 6.1, pH meter; clear wavy boundary. Lab sample # 18N00463. wt <19mm= 13 lbs; 19-75mm= 27 lbs; >75mm= 2 lbs all weight values have tare subtracted
    C—113 to 135 centimeters (44.5 to 53.1 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 3/4), moist; extremely stony coarse sand; 5 percent clay; single grain; loose, loose, nonsticky, nonplastic; 0.2 medium roots and 0.2 fine roots; 10 percent prominent silica coats on bottom of rock fragments; 25 percent by volume nonflat rounded indurated 75-?-250 millimeter basalt fragments observed by visual inspection method and 25 percent by volume nonflat rounded indurated 250-?-600 millimeter basalt fragments observed by visual inspection method and 35 percent by volume nonflat rounded indurated 2-?-75 millimeter basalt fragments observed by visual inspection method; slightly acid, pH 6.4, pH meter. Lab sample # 18N00464. wt <19mm= 17.5 lbs; 19-75mm= 26 lbs; >75mm= 26 lbs all weight values have tare subtracted