IDENTIFIERS

  • Current Taxon Name (Soil Name): KOYUKUK
  • OSD
  • Series Extent
  • User Site ID: S1974AK290005
  • User Pedon ID: S1974AK290005
  • Vegetation Plot ID: S1974AK290005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 74C0096
  • NCSS Pedon Lab Data NASIS Record ID - 44857
  • Print Date: 4/28/2025

    • 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: 65.0333328
  • Std. Longitude: -150.5833282
  • Datum: WGS84
  • Location Description: about 3.6 km northeast of Manley Hot Springs
  • State: Alaska
  • County: AK290—Yukon-Koyukuk Census Area

    • PEDON

  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Sampled As Information:
  • Soil Name - KOYUKUK
  • PSC - 25 to 100 cm.
  • Classificaton Date - 6/1/1974
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1974 (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

    PIGL

    POTR5

    Picea glauca

    Populus tremuloides

    white spruce

    quaking aspen

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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

    5

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    —

    200

    —

    225

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    O1—0 to 5 centimeters (0.0 to 2.0 inches); dark reddish brown (5YR 2/2); fragments; abrupt wavy boundary. Lab sample # 74C00571
    A2—5 to 11 centimeters (2.0 to 4.3 inches); grayish brown (10YR 5/2) silt loam; weak very fine subangular blocky structure; very friable; fragments; abrupt irregular boundary. Lab sample # 74C00572
    B2—11 to 22 centimeters (4.3 to 8.7 inches); dark yellowish brown (10YR 4/4) silt loam; weak thin platy structure; very friable; fragments; clear wavy boundary. Lab sample # 74C00573
    B3—22 to 37 centimeters (8.7 to 14.6 inches); brown (10YR 4/3) and brown (10YR 5/3) silt loam; weak very thin platy structure; very friable; fragments; clear wavy boundary. Lab sample # 74C00574
    C1—37 to 73 centimeters (14.6 to 28.7 inches); brown (10YR 5/3) silt loam; weak very thin platy structure; very friable; fragments; clear wavy boundary. Lab sample # 74C00575
    C2—73 to 89 centimeters (28.7 to 35.0 inches); dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) silt loam; weak very thin platy structure; very friable; fragments; gradual boundary. Lab sample # 74C00576
    C3—89 to 134 centimeters (35.0 to 52.8 inches); dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) silt loam; 1 percent dark yellowish brown (10YR 4/4) fine faint mottles; weak very thin platy structure; very friable; fragments; gradual boundary. Lab sample # 74C00577
    C4—134 to 155 centimeters (52.8 to 61.0 inches); grayish brown (2.5Y 5/2) silt; weak very thin platy structure; very friable; dark yellowish brown (10YR 4/4) coats in root channels and/or pores; fragments. Lab sample # 74C00578