IDENTIFIERS

  • Current Taxon Name (Soil Name): Ypsilon
  • OSD
  • Series Extent
  • User Site ID: S1998CO069005
  • User Pedon ID: 98CO069005
  • Vegetation Plot ID: S1998CO069005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 99P0043
  • NCSS Pedon Lab Data NASIS Record ID - 10903
  • Print Date: 11/24/2024

    • 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: 40.4419441
  • Std. Longitude: -105.7188873
  • Datum: WGS84
  • Location Description: About 0.5 miles north of Marmot Peak in Rocky Mountain National Park.
  • State: Colorado
  • County: CO069—Larimer
  • MLRA: 48A—Southern Rocky Mountains
  • Non-MLRA Soil Survey Area: CO651—Rocky Mountain National Park, Colorado, Parts of Boulder, Grand, and Larimer Counties
  • 7.5 Minute USGS Quad: 40105-D6—Trail Ridge, Colorado

    • PEDON

  • Describers Name: Jim Borchert, Mike Peterson
  • Current Taxonomic Class: Loamy-skeletal, isotic Typic Haplocryods
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Ypsilon
  • PSC - 25 to 102 cm.
  • Classificaton Date - 1/27/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Leighcan
  • Taxonomic Class - Loamy-skeletal, paramicaceous Dystric Cryochrept
  • Taxon Kind - series
  • Classificaton Date - 7/16/1998
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountains
  • Landform: mountain slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Runoff: very high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: s slight weathered mixed-igneous and metamorphic
  • Surface Fragments: 0.50 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/16/1998 (actual site observation date)
  • Plant Association Name: Pien/Vasc
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    PIEN

    VASC

    Picea engelmannii

    Vaccinium scoparium

    Engelmann spruce

    grouse whortleberry

    —

    —

    —

    —

    —

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

    ochric epipedon

    albic horizon

    cambic horizon

    3—10

    10—30

    30—71

    —-

    —-

    —-
    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

    40

    —

    —

    3404

    —

    300

    —

    —

    —

    3.3

    —

    —

    2.2

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); fragments.
    A—3 to 10 centimeters (1.2 to 3.9 inches); very dark brown (7.5YR 2/2), dark brown (7.5YR 3/2), dry; gravelly loam; 8 percent clay; moderate fine granular structure; soft, very friable, nonsticky, nonplastic; 10.0 very fine and fine roots and 3.0 medium roots and 0.5 coarse roots; 2 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments and 20 percent by volume 2-39-75 millimeter unspecified fragments; noneffervescent; very strongly acid, pH 4.6, hellige-truog; abrupt smooth boundary.; moist when described;
    E—10 to 30 centimeters (3.9 to 11.8 inches); brown (7.5YR 4/2), pinkish gray (7.5YR 6/2), dry; extremely gravelly sandy loam; 5 percent clay; weak medium granular structure; soft, very friable, nonsticky, nonplastic; 2.0 very fine and fine roots and 0.5 medium and coarse roots; 15 percent by volume 75-162-250 millimeter unspecified fragments and 15 percent by volume 250-425-600 millimeter unspecified fragments and 35 percent by volume 2-39-75 millimeter unspecified fragments; noneffervescent; very strongly acid, pH 4.6, hellige-truog; abrupt wavy boundary.; moist when described;
    Bw1—30 to 60 centimeters (11.8 to 23.6 inches); brown (7.5YR 4/3), brown (7.5YR 5/3), dry; extremely gravelly coarse sandy loam; 11 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 3.0 very fine and fine roots and 0.5 medium roots; 2 percent by volume 250-425-600 millimeter unspecified fragments and 20 percent by volume 75-162-250 millimeter unspecified fragments and 55 percent by volume 2-39-75 millimeter unspecified fragments; noneffervescent; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # 99P00234; moist when described;. This horizon was sampled for laboratory analysis.
    Bw2—60 to 70 centimeters (23.6 to 27.6 inches); dark yellowish brown (10YR 3/4), dark yellowish brown (10YR 4/4), dry; extremely cobbly sandy loam; 10 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 0.5 medium roots; 25 percent by volume 2-39-75 millimeter unspecified fragments and 25 percent by volume 250-425-600 millimeter unspecified fragments and 35 percent by volume 75-162-250 millimeter unspecified fragments; noneffervescent; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary.; moist when described;
    C—70 to 100 centimeters (27.6 to 39.4 inches); dark yellowish brown (10YR 4/4), yellowish brown (10YR 5/4), dry; extremely cobbly sandy loam; 8 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, nonplastic; 10 percent by volume 250-425-600 millimeter unspecified fragments and 20 percent by volume 2-39-75 millimeter unspecified fragments and 40 percent by volume 75-162-250 millimeter unspecified fragments; noneffervescent; very strongly acid, pH 4.8, hellige-truog.; moist when described;