IDENTIFIERS

  • Current Taxon Name (Soil Name): Lonna
  • OSD
  • Series Extent
  • User Site ID: S1956MT103007
  • User Pedon ID: S1956MT103007
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3531
  • NCSS Pedon Lab Data NASIS Record ID - 39196
  • Print Date: 11/26/2024

    • 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: 46.2643776
  • Std. Longitude: -107.2543259
  • Datum: WGS84
  • Township: 6N
  • Range: 36E
  • Section: 20
  • PLSS Details: 0.15 mile east of north quarter corner
  • State: Montana
  • County: MT103—Treasure
  • MLRA: 58A—Northern Rolling High Plains, Northern Part
  • Non-MLRA Soil Survey Area: MT103—Treasure County, Montana

    • PEDON

  • Describers Name: R. L. Moshier
  • Current Taxonomic Class: Fine-silty, mixed, frigid Borollic Camborthids
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 7
  • Correlated Information:
  • Soil Name - Lonna
  • Classificaton Date - 7/23/2007
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Nunn
  • Classificaton Date - 10/1/1956
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: fan terrace
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1956 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    792

    —

    315

    —

    —

    —

    —

    —

    —

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    Ap1—0 to 13 centimeters (0.0 to 5.1 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2), moist; silty clay loam; weak fine and medium angular blocky structure; hard, friable, moderately sticky, moderately plastic; 21.0 roots; fragments; slight effervescence; moderately alkaline, pH 8.0, bromthymol blue; abrupt boundary. Lab sample # 40A27251
    Ap2—13 to 23 centimeters (5.1 to 9.1 inches); brown (10YR 5/3), very dark grayish brown (10YR 3/2), moist; silty clay loam; columnar structure; friable, moderately sticky, moderately plastic; 21.0 roots; 30 percent clay films on lower surfaces of peds or rocks; fragments; strong effervescence; moderately alkaline, pH 8.2, bromthymol blue; abrupt wavy boundary. Lab sample # 40A27252. cloddy.; continuous - phpvsfiid 197075; continuous - phpvsfiid 197075
    B2—23 to 43 centimeters (9.1 to 16.9 inches); pale olive (5Y 6/3), olive brown (2.5Y 4/3), moist; silty clay loam; moderate medium prismatic parts to moderate coarse angular blocky structure; friable, moderately sticky, moderately plastic; 21.0 roots; 21.0 very fine and fine pores; 30 percent clay films on vertical faces of peds; fragments; strong effervescence; strongly alkaline, pH 8.6, bromthymol blue; clear smooth boundary. Lab sample # 40A27253. patchy - phpvsfiid 187906; patchy - phpvsfiid 187906
    B3cal—43 to 58 centimeters (16.9 to 22.8 inches); pale olive (5Y 6/3), olive (5Y 4/3), moist; silty clay loam; weak medium prismatic structure; friable, moderately sticky, moderately plastic; 21.0 roots; 21.0 very fine pores; clay films; fragments; violent effervescence; strongly alkaline, pH 8.8, bromthymol blue; gradual boundary. Lab sample # 40A27254. patchy - phpvsfiid 187907; patchy - phpvsfiid 187907
    C1ca—58 to 86 centimeters (22.8 to 33.9 inches); pale olive (5Y 6/3), olive (5Y 4/3), moist; silty clay; weak very coarse prismatic parts to weak coarse angular blocky structure; friable, moderately sticky, moderately plastic; 21.0 roots; 21.0 fine pores; fragments; violent effervescence; strongly alkaline, pH 8.8, bromthymol blue; gradual boundary. Lab sample # 40A27255
    C2—86 to 114 centimeters (33.9 to 44.9 inches); pale olive (5Y 6/3), olive (5Y 5/3), moist; silty clay loam; massive; friable, moderately sticky, very plastic; 21.0 roots; 0.5 very fine pores; fragments; strong effervescence; strongly alkaline, pH 8.8, bromthymol blue; gradual boundary. Lab sample # 40A27256
    C3—114 to 127 centimeters (44.9 to 50.0 inches); pale olive (5Y 6/3), olive (5Y 5/3), moist; silty clay loam; massive; friable, moderately sticky, moderately plastic; 21.0 roots; fragments; strong effervescence; strongly alkaline, pH 8.8, bromthymol blue; abrupt smooth boundary. Lab sample # 40A27257
    C4—127 to 157 centimeters (50.0 to 61.8 inches); pale olive (5Y 6/3), olive (5Y 5/3), moist; stratified loam to fine sandy loam; massive; very friable, nonsticky, nonplastic; 0.5 roots; fragments. Lab sample # 40A27258