IDENTIFIERS

  • Current Taxon Name (Soil Name): Longpen
  • OSD
  • Series Extent
  • User Site ID: S1992ID035034
  • User Pedon ID: 92ID035034
  • Vegetation Plot ID: S1992ID035034
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0089
  • NCSS Pedon Lab Data NASIS Record ID - 65433
  • Print Date: 2/16/2025

    • 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: 46.2961121
  • Std. Longitude: -115.9213867
  • Datum: WGS84
  • Township: 34N
  • Range: 4E
  • Section: 14
  • PLSS Details: 50 feet S and 2000 feet E of NW corner
  • Location Description: K. Steigers.
  • State: Idaho
  • County: ID035—Clearwater
  • MLRA: 43A—Northern Rocky Mountains

    • PEDON

  • Describers Name: G.H.
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 34
  • Sampled As Information:
  • Soil Name - Longpen
  • Taxonomic Class - Fine-loamy, mixed Mollic Haploxeralfs
  • PSC - 33 to 83 cm.
  • Classificaton Date - 7/30/1992
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plateau
  • Landform: hillside
  • Slope Position: lower third
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/30/1992 (actual site observation date)
  • Air Photo ID: 8-18
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - other 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

    ABGR

    ADBI

    AMAL2

    CARU

    HODI

    PIPO

    PSME

    ROGY

    SYAL

    Abies grandis

    Adenocaulon bicolor

    Amelanchier alnifolia

    Calamagrostis rubescens

    Holodiscus discolor

    Pinus ponderosa

    Pseudotsuga menziesii

    Rosa gymnocarpa

    Symphoricarpos albus

    grand fir

    American trailplant

    Saskatoon serviceberry

    pinegrass

    oceanspray

    ponderosa pine

    Douglas-fir

    dwarf rose

    common snowberry

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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

    30

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    853

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    160

    860

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    94

    8

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    Oe—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Lab sample # 93P00635. slightly decomposed needles, twigs, and leaves.
    A—3 to 13 centimeters (1.2 to 5.1 inches); brown (10YR 4/3) crushed, very dark brown (10YR 2/2) crushed, moist; silt loam; 17 percent clay; weak very fine and fine subangular blocky, and strong fine and medium granular structure; slightly hard, very friable, slightly sticky, slightly plastic; 10.0 very fine roots throughout and 0.5 fine roots throughout; 10.0 very fine high-continuity interstitial and 0.5 medium moderate-continuity interstitial and 3.0 fine high-continuity interstitial pores; fragments; slightly acid, pH 6.2, chlorophenol red; clear wavy boundary. Lab sample # 93P00636
    AB—13 to 23 centimeters (5.1 to 9.1 inches); brown (7.5YR 4/3) crushed and brown (7.5YR 4/4) crushed, dark brown (7.5YR 3/3) crushed and dark brown (7.5YR 3/4) crushed, moist; silt loam; 18 percent clay; weak very fine and fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 10.0 very fine roots throughout and 0.5 very coarse roots throughout and 0.5 fine to coarse roots throughout; 10.0 very fine high-continuity interstitial and 0.5 fine high-continuity interstitial pores; fragments; neutral, pH 6.8, chlorophenol red; clear wavy boundary. Lab sample # 93P00637. Part A: 7.5YR 4/3 dry color; Part B: 7.5YR 4/4 dry color, 7.5YR 3/4 moist color.
    BA—23 to 36 centimeters (9.1 to 14.2 inches); brown (7.5YR 5/4) crushed, dark brown (7.5YR 3/4) crushed, moist; silt loam; 18 percent clay; moderate fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 10.0 very fine roots throughout and 0.5 very coarse roots throughout and 0.5 fine to coarse roots throughout; 1.0 very fine high-continuity interstitial and 10.0 very fine high-continuity tubular and 3.0 fine moderate-continuity tubular pores; fragments; neutral, pH 6.8, chlorophenol red; clear smooth boundary. Lab sample # 93P00638
    Bt1—36 to 64 centimeters (14.2 to 25.2 inches); brown (7.5YR 5/4) exterior, dark brown (7.5YR 3/4) crushed, moist; silt loam; 23 percent clay; strong fine and medium subangular blocky structure; very hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.5 very coarse roots throughout and 0.5 fine to coarse roots throughout; 10.0 very fine high-continuity tubular and 0.5 medium moderate-continuity tubular and 3.0 fine moderate-continuity tubular pores; 15 percent faint clay films in root channels and/or pores; 1 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; gradual smooth boundary. Lab sample # 93P00639. very scattered clay films in the horizon.; patchy - phpvsfiid 175533; patchy - phpvsfiid 175533
    Bt2—64 to 89 centimeters (25.2 to 35.0 inches); brown (7.5YR 5/4) exterior, dark brown (7.5YR 3/4) exterior, moist; silt loam; 25 percent clay; strong fine and medium subangular blocky, and coarse subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.5 very coarse roots throughout and 0.5 fine and medium roots throughout; 10.0 very fine moderate-continuity tubular and 3.0 fine moderate-continuity tubular pores; 15 percent faint clay films in root channels and/or pores; 2 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; gradual smooth boundary. Lab sample # 93P00640. patchy - phpvsfiid 175534; patchy - phpvsfiid 175534
    Bt3—89 to 120 centimeters (35.0 to 47.2 inches); brown (7.5YR 5/4) exterior, dark brown (7.5YR 3/4) exterior, moist; silt loam; 26 percent clay; moderate medium prismatic, and moderate fine and medium subangular blocky structure; very hard, very firm, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.5 very coarse roots throughout and 0.5 fine to coarse roots throughout; 10.0 very fine moderate-continuity tubular and 3.0 fine moderate-continuity tubular pores; 15 percent distinct light yellowish brown (10YR 6/4) skeletans on faces of peds and in pores and 37 percent distinct clay films on faces of peds and in pores; 2 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; gradual smooth boundary. Lab sample # 93P00641. discontinuous - phpvsfiid 175535; discontinuous - phpvsfiid 175536; discontinuous - phpvsfiid 175535; discontinuous - phpvsfiid 175536
    Bt4—120 to 155 centimeters (47.2 to 61.0 inches); brown (7.5YR 5/4) exterior, dark brown (7.5YR 3/4) exterior, moist; silty clay loam; 27 percent clay; moderate medium prismatic, and strong very fine and fine subangular blocky, and medium subangular blocky structure; very hard, very firm, slightly sticky, slightly plastic; 3.0 very fine roots between peds and 0.5 very coarse roots throughout and 0.5 fine roots between peds; 10.0 very fine moderate-continuity tubular and 0.5 fine moderate-continuity tubular pores; 37 percent distinct light yellowish brown (10YR 6/4) skeletans on faces of peds and in pores and 37 percent distinct clay films on faces of peds and in pores; 2 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red. Lab sample # 93P00642. about 50% of roots restricted to ped faces.; discontinuous - phpvsfiid 175537; discontinuous - phpvsfiid 175538; discontinuous - phpvsfiid 175537; discontinuous - phpvsfiid 175538
    2Bt5—155 to 168 centimeters (61.0 to 66.1 inches); brown (7.5YR 5/4) exterior, dark brown (7.5YR 3/4) exterior, moist; silty clay loam; 30 percent clay; moderate medium prismatic, and strong medium subangular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 fine to coarse roots between peds; 10.0 very fine moderate-continuity tubular and 0.5 fine moderate-continuity tubular pores; 15 percent distinct very pale brown (10YR 7/3) skeletans on faces of peds and in pores and 55 percent distinct clay films on faces of peds and in pores; fragments. Lab sample # 93P00643. Possible buried Bt.; patchy - phpvsfiid 175540; discontinuous - phpvsfiid 175539; patchy - phpvsfiid 175540; discontinuous - phpvsfiid 175539