IDENTIFIERS

  • Current Taxon Name (Soil Name): PRATER
  • OSD
  • Series Extent
  • User Site ID: S1993CO083002
  • User Pedon ID: 93CO083002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0644
  • NCSS Pedon Lab Data NASIS Record ID - 65987
  • 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: 37.2519455
  • Std. Longitude: -108.4124985
  • Datum: WGS84
  • Location Description: Ridge between Prater and Morefield canyon, E. side. Mesa Verde National Park.
  • State: Colorado
  • County: CO083—Montezuma
  • MLRA: 36—Southwestern Plateaus, Mesas, and Foothills
  • Non-MLRA Soil Survey Area: CO671—Cortez Area, Colorado, Parts of Dolores and Montezuma Counties
  • 7.5 Minute USGS Quad: 37108-C4—Point Lookout, Colorado

    • PEDON

  • Describers Name: Jonathan W. Hooper, Douglas K. Ramsey
  • Current Taxonomic Class: Fine, mixed, mesic Aridic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - PRATER
  • PSC - 24 to 74 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Durango
  • Taxonomic Class - Fine, mixed, mesic Aridic Haplustalf
  • Taxon Kind - series
  • Classificaton Date - 10/20/1993
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plateau
  • Landform: hillside
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 1.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/20/1993 (actual site observation date)
  • Air Photo ID: 1103-71
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—8

    8—94

    —-

    —-
    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

    22

    —

    —

    2304

    —

    280

    432

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 1 centimeters (0.0 to 0.4 inches); dark grayish brown (10YR 4/2) crushed, very dark grayish brown (10YR 3/2) crushed, moist; loamy sand; 3 percent clay; massive; loose, loose, nonsticky, nonplastic; 1 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 93P04528. 50 % twigs and duff
    A2—1 to 8 centimeters (0.4 to 3.1 inches); brown (10YR 5/3) crushed, dark brown (10YR 3/3) crushed, moist; clay loam; 29 percent clay; moderate coarse platy parts to moderate fine granular structure; slightly hard, very friable, slightly sticky, slightly plastic; 4.0 very fine roots and 1.0 fine roots throughout; 1 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 93P04529
    Bt—8 to 24 centimeters (3.1 to 9.4 inches); yellowish brown (10YR 5/4) crushed, brown (10YR 4/3) crushed, moist; clay loam; 35 percent clay; moderate fine angular blocky structure; hard, friable, moderately sticky, moderately plastic; 2.0 medium roots throughout and 1.0 fine roots between peds; 0.5 very fine discontinuous tubular pores; 50 percent distinct clay films on faces of peds and in pores; 1 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # 93P04530. discontinuous - phpvsfiid 192117; discontinuous - phpvsfiid 192117
    Btk1—24 to 42 centimeters (9.4 to 16.5 inches); yellowish brown (10YR 5/4) crushed, brown (10YR 4/3) crushed, moist; clay loam; 44 percent clay; 1 percent yellowish brown (10YR 5/6) medium faint mottles; moderate fine angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 1.0 fine roots and 1.0 coarse roots throughout; 0.5 very fine discontinuous tubular and 0.5 very fine pores; 90 percent distinct clay films on faces of peds and in pores; 1 percent fine spherical carbonate masses throughout; 1 percent by volume 250-425-600 millimeter sandstone, unspecified fragments and 5 percent by volume 2-39-75 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; slight effervescence; slightly alkaline, pH 7.6, hellige-truog; gradual smooth boundary. Lab sample # 93P04531. mottles may be due to iron concentrations from PM.; continuous - phpvsfiid 192118; continuous - phpvsfiid 192118
    Btk2—42 to 54 centimeters (16.5 to 21.3 inches); light yellowish brown (10YR 6/4) crushed, brown (10YR 4/3) crushed, moist; clay loam; 36 percent clay; 4 percent yellowish brown (10YR 5/6) medium faint mottles; moderate fine angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 very fine roots and 1.0 fine roots throughout; 0.5 very fine and 0.5 fine discontinuous tubular pores; 90 percent distinct clay films on faces of peds and in pores; 2 percent medium spherical carbonate masses throughout; 1 percent by volume 250-425-600 millimeter sandstone, unspecified fragments and 5 percent by volume 2-39-75 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, hellige-truog; gradual smooth boundary. Lab sample # 93P04532. continuous - phpvsfiid 192119; continuous - phpvsfiid 192119
    Btk3—54 to 94 centimeters (21.3 to 37.0 inches); very pale brown (10YR 7/3) crushed, light olive brown (2.5Y 5/3) crushed, moist; clay; 42 percent clay; 4 percent yellowish brown (10YR 5/6) fine faint mottles; moderate fine angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 very fine roots and 1.0 fine roots throughout; 0.5 very fine discontinuous tubular pores; 90 percent distinct clay films on faces of peds and in pores; 5 percent coarse irregular carbonate masses throughout; 2 percent by volume 250-425-600 millimeter sandstone, unspecified fragments and 4 percent by volume 75-162-250 millimeter unspecified fragments and 5 percent by volume 2-39-75 millimeter unspecified fragments; strong effervescence; moderately alkaline, pH 8.2, hellige-truog; gradual smooth boundary. Lab sample # 93P04533. pressure faces present; continuous - phpvsfiid 192120; continuous - phpvsfiid 192120
    Bk—94 to 165 centimeters (37.0 to 65.0 inches); 50 percent light brownish gray (10YR 6/2) crushed and 25 percent light brown (7.5YR 6/4) crushed and 25 percent brown (10YR 5/3) crushed, grayish brown (10YR 5/2) crushed and brown (7.5YR 5/4) crushed and grayish brown (2.5Y 5/2) crushed, moist; clay; 49 percent clay; 1 percent yellowish brown (10YR 5/6) fine faint mottles; weak coarse subangular blocky structure; extremely hard, friable, slightly sticky, moderately plastic; 1.0 very fine roots and 1.0 medium roots throughout and 0.5 fine roots; 5 percent coarse spherical carbonate masses throughout; 4 percent by volume 250-425-600 millimeter sandstone, unspecified fragments and 5 percent by volume 2-39-75 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; slight effervescence; moderately alkaline, pH 8.2, hellige-truog. Lab sample # 93P04534. pressure faces present. Horizon has variegated colors. Pockets of eolian material at 42 inches.