IDENTIFIERS

  • Current Taxon Name (Soil Name): Mcdonaldsville
  • OSD
  • Series Extent
  • User Site ID: S1990MT097007
  • User Pedon ID: 90MT097007
  • Vegetation Plot ID: S1990MT097007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0257
  • NCSS Pedon Lab Data NASIS Record ID - 63304
  • 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: 46.1435280
  • Std. Longitude: -110.0077515
  • Datum: WGS84
  • Township: 5N
  • Range: 14E
  • Section: 32
  • PLSS Details: 1500 feet south and 100 feet east of the northwest corner
  • State: Montana
  • County: MT097—Sweet Grass
  • Non-MLRA Soil Survey Area: MT639—Sweet Grass County Area, Montana

    • PEDON

  • Describers Name: D. Shurtliff and B. Logar
  • Current Taxonomic Class: Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Argiaquolls
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Sampled As Information:
  • Soil Name - Mcdonaldsville
  • Taxonomic Class - Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Argiaquolls
  • PSC - 20 to 46 cm.
  • Classificaton Date - 4/22/1991
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: glacial outwash
  • Landform: outwash plain
  • Runoff: very low
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/22/1991 (actual site observation date)
  • Surface Cover Properties:
  • 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

    CAREX

    ELCI

    SPPE

    Carex

    Elsholtzia ciliata

    Spartina pectinata

    sedge

    crested latesummer mint

    prairie cordgrass

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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

    1

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    1591

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    A—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), dry; clay loam; weak fine and medium granular structure; soft, friable, nonsticky, nonplastic; 21.0 medium roots throughout and 3.0 fine roots throughout; 3.0 fine interstitial pores; 20 percent by volume 2-?-75 millimeter unspecified fragments; slightly alkaline, pH 7.8, cresol red; abrupt smooth boundary. Lab sample # 91P01572
    Bt—20 to 46 centimeters (7.9 to 18.1 inches); brown (10YR 4/3), brown (10YR 5/3), dry; clay loam; 1 percent gray (10YR 5/1) fine faint and 3 percent strong brown (7.5YR 5/6) fine and medium distinct mottles; weak medium prismatic parts to moderate fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 medium roots throughout and 3.0 fine roots throughout; 3.0 fine interstitial pores; 10 percent faint clay films on all faces of peds; 10 percent by volume 2-?-75 millimeter unspecified fragments; moderately alkaline, pH 8.2, cresol red; gradual smooth boundary. Lab sample # 91P01573. discontinuous - phpvsfiid 265427; discontinuous - phpvsfiid 265427
    2Bk—46 to 76 centimeters (18.1 to 29.9 inches); dark grayish brown (2.5Y 4/2), grayish brown (2.5Y 5/2), dry; gravelly loamy coarse sand; massive; loose, loose, nonsticky, nonplastic; 3.0 fine and medium roots; 5 percent by volume 75-?-250 millimeter unspecified fragments; slight effervescence; moderately alkaline, pH 8.4, cresol red; clear smooth boundary. Lab sample # 91P01574
    2C—76 to 152 centimeters (29.9 to 59.8 inches); olive gray (5Y 4/2), gray (5Y 6/1), dry; very gravelly coarse sand; single grain; loose, loose, nonsticky, nonplastic; 3.0 fine roots; 3.0 fine tubular and 3.0 fine interstitial pores; 15 percent by volume 75-?-250 millimeter unspecified fragments and 40 percent by volume 2-?-75 millimeter unspecified fragments; strong effervescence; strongly alkaline, pH 8.6, cresol red. Lab sample # 91P01575