IDENTIFIERS

  • Current Taxon Name (Soil Name): Lamonta
  • OSD
  • Series Extent
  • User Site ID: S1955OR031014
  • User Pedon ID: S1955OR031014
  • Vegetation Plot ID: S1955OR031014
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0908
  • NCSS Pedon Lab Data NASIS Record ID - 33967
  • 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: 44.4688873
  • Std. Longitude: -121.0436096
  • Datum: WGS84
  • Township: 13S
  • Range: 14E
  • Section: 3
  • PLSS Details: NW 1/4, NE 1/4, SW 1/4
  • Location Description: Prineville area. 1.4 miles south of Grizzly Road Junction on Madras Highway; 30 feet east of fence and borrow area
  • State: Oregon
  • County: OR031—Jefferson
  • Non-MLRA Soil Survey Area: OR654—Prineville Area, Oregon

    • PEDON

  • Describers Name: George Smith
  • Current Taxonomic Class: Fine-silty, smectitic, mesic Abruptic Aridic Durixerolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 14
  • Correlated Information:
  • Soil Name - Lamonta
  • PSC - 36 to 66 cm.
  • Classificaton Date - 1/27/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - LAMONTA
  • Classificaton Date - 6/1/1955
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1955 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous 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

    ARTR2

    PSSPS

    Artemisia tridentata

    Pseudoroegneria spicata ssp. spicata

    big sagebrush

    bluebunch wheatgrass

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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

    2

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    1006

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    279

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    AP—0 to 18 centimeters (0.0 to 7.1 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; gravelly loam; moderate medium granular, and moderate fine granular structure; slightly hard, friable, moderately sticky, slightly plastic; fragments; neutral, pH 6.7, unspecified; gradual boundary. Lab sample # 40A06830. moderate number of rhyolite angular and subangular pebbles and gravels; gravelly clay loam layer about 1 to 2 inches thick mixed with the surface in deep plowing; lower 5 inches medium platy to fine granular
    B1A3—18 to 36 centimeters (7.1 to 14.2 inches); grayish brown (10YR 5/2) and brown (10YR 5/3), dark brown (10YR 3/3), moist; gravelly clay loam; weak medium subangular blocky structure; slightly hard, friable, slightly plastic; fragments; neutral, pH 7.0, unspecified; abrupt boundary. Lab sample # 40A06831. moderate number of rhyolitic gravels and pebbles; transitional 7 to 10 inches is possibly an A3p included in B1 as the textures were similar
    B2—36 to 56 centimeters (14.2 to 22.0 inches); brown (10YR 4/3) and brown (7.5YR 4/3), dark brown (7.5YR 3/2), moist; gravelly clay, cobbly clay; strong medium prismatic, and strong medium angular blocky, and strong fine angular blocky structure; hard when dry, firm, very sticky, moderately plastic; dark brown (7.5YR 3/2) clay films on vertical faces of peds; 15 percent by volume 2-39-75 millimeter igneous, acid fragments; neutral, pH 7.3, unspecified; clear boundary. Lab sample # 40A06832. horizon fine and medium reddish rhyolite; continuous - phpvsfiid 197929; continuous - phpvsfiid 197929
    B3—56 to 66 centimeters (22.0 to 26.0 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; gravelly clay; moderate medium angular blocky, and strong medium angular blocky structure; hard when dry, firm, very sticky, moderately plastic; 10 percent dark brown (7.5YR 3/4) and 10 percent dark brown (7.5YR 3/3); 23 percent by volume 2-39-75 millimeter igneous, acid fragments; slightly alkaline, pH 7.6, unspecified; abrupt boundary. Lab sample # 40A06833. some lime on undersides of cobbles
    B3M—66 to 102 centimeters (26.0 to 40.2 inches); pale brown (10YR 6/3) and light brownish gray (10YR 6/2) and light gray (10YR 7/2) gravelly sand; fragments; strong effervescence; moderately alkaline, pH 8.0, unspecified; gradual broken boundary. Lab sample # 40A06834. numerous thin very hard lens of silica cause pan to fracture into medium and thick platy fragments when struck with a pick
    2CCA—102 to 102 centimeters (40.2 to 40.2 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4), moist; massive; slightly hard, firm; fragments. Lab sample # 40A06835. weakly consolidated very gravelly sandstone or agglomerate