IDENTIFIERS

  • Current Taxon Name (Soil Name): Penrose
  • OSD
  • Series Extent
  • User Site ID: 96CO628025
  • User Pedon ID: 96CO628025
  • Vegetation Plot ID: 96CO628025
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 97P0586
  • NCSS Pedon Lab Data NASIS Record ID - 10267
  • Print Date: 2/17/2025

    • 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: 37.1991667
  • Std. Longitude: -103.6088889
  • Datum: WGS84
  • Township: 33 S.
  • Range: 55 W.
  • Section: 5
  • PLSS Details: 750 feet east and 2,050 feet south of the northwest corner
  • Map Unit: PnD—Penrose loam, moist, 2 to 15 percent slopes
  • State: Colorado
  • County: CO071—Las Animas
  • MLRA: 67B—Central High Plains, Southern Part
  • Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties
  • 7.5 Minute USGS Quad: 37103-B5—Tobe, Colorado

    • PEDON

  • Describers Name: LAN
  • Current Taxonomic Class: Loamy, carbonatic, mesic Lithic Ustic Torriorthents
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 709
  • Sampled As Information:
  • Soil Name - Penrose
  • Taxonomic Class - Loamy, carbonatic, mesic Lithic Ustic Torriorthents
  • PSC - 0 to 25 cm.
  • Classificaton Date - 4/12/1996
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from limestone and shale
  • Landscape: plains
  • Landform: scarp
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: h slight weathered limestone and shale
  • Geology: Fort Hayes Limestone member of the Niobrara formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/12/1996 (actual site observation date)
  • Air Photo ID: 29-E
  • Plant Association Name: Limestone breaks #58
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind and water erosion
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    A

    C

    0

    15

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    A

    C

    0

    15

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    A

    C

    0

    15

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    67

    69

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    Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ARLOG

    BOCU

    BOGR2

    GUSA2

    PASM

    PLJA

    YUCCA

    Aristida longispica var. geniculata

    Bouteloua curtipendula

    Bouteloua gracilis

    Gutierrezia sarothrae

    Pascopyrum smithii

    Pleuraphis jamesii

    Yucca

    slimspike threeawn

    sideoats grama

    blue grama

    broom snakeweed

    western wheatgrass

    James' galleta

    yucca

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

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    25 - 152

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

    ochric epipedon

    lithic contact

    0—15

    25—152

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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

    4

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    1784

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    280

    381

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    11.1

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    10.6

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    A—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 5/3), brown (10YR 4/3), moist; loam; 18 percent clay; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; 5.0 very fine and fine roots; 10 percent by volume 2-76-150 millimeter unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog; abrupt wavy boundary.; moist when described;
    C—15 to 25 centimeters (5.9 to 9.8 inches); pale brown (10YR 6/3), brown (10YR 5/3), moist; channery loam; 22 percent clay; weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 20 percent by volume 2-76-150 millimeter unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; abrupt smooth boundary.; dry when described;
    R—25 centimeters (9.8 inches); unweathered bedrock; fragments.