LOCATION KANAUGUK                AK

Established Series
Rev. MHC/DLM
05/2022

KANAUGUK SERIES

Depth class: shallow
Drainage class: well drained
Landforms: mountains
Parent material: gravelly colluvium derived from marble
Elevation: 545 to 712 feet
Slope: 6 to 25 percent
Annual precipitation: about 22 inches
Annual temperature: about 25 degrees F
Frost-free period: 60 to 90 days

TAXONOMIC CLASS:

TYPICAL PEDON: Kanauguk very channery loam- on a slope of 10 percent under dwarf herbaceous vegetation. (All colors are for moist soil)

Oi--0 to 1 inch; very dark brown (10YR 2/2) slightly decomposed plant material; many very fine and fine and few medium roots; 20 percent channers; neutral (pH 7.1); abrupt wavy boundary.

A--1 to 11 inches; dark brown (10YR 3/3) very channery loam; friable, nonsticky and nonplastic; common very fine and fine and few medium roots; slightly effervescent; 30 percent channers; 5 percent flags; 2 percent boulders; slightly alkaline (pH 7.6); gradual wavy boundary.

C--11 to 17 inches; very dark grayish brown (2.5Y 3/2) very channery loam; friable, nonsticky and nonplastic; few very fine and fine roots; slightly effervescent; 45 percent channers; 10 percent flags; 2 percent boulders; slightly alkaline (pH 7.7); abrupt wavy boundary.

R--17 to 60 inches; fractured bedrock.

TYPE LOCATION: Steward River Training Site Area, Alaska; UTM coordinates: Zone 3, Easting 469602, Northing 7180034

RANGE IN CHARACTERISTICS:
Soil moisture class: udic
Average annual soil temperature: about 29 degrees F.
Mean summer soil temperature: about 35 degrees F.
Depth to bedrock (lithic): 9 to 20 inches

Oi horizon:
Value: 2 or 3
Chroma: 2 or 3
Organic matter content: 65 to 90 percent
Reaction: neutral to slightly alkaline

A horizon:
Value: 2 or 3
Chroma: 2 or 3
Clay content: 5 to 15 percent
Silt content: 10 to 45 percent
Sand content: 45 to 75 percent
Organic matter content: 3 to 8 percent
Rock fragments: 15 to 45 percent subangular very strongly cemented channers. 2 to 25 percent subangular very strongly cemented flagstones, 0 to 20 percent subangular very strongly cemented boulders
Reaction: slightly alkaline or moderately alkaline

C horizon:
Texture: very channery loam, extremely channery loam
Clay content: 5 to 15 percent
Silt content: 10 to 45 percent
Sand content: 45 to 75 percent
Organic matter content: 0 to 1 percent
Rock fragments: 25 to 50 percent subangular strongly cemented channers, 0 to 20 percent subangular strongly cemented flagstones, 0 to 20 percent subangular strongly cemented boulders
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: This are no competing series in this classification.

GEOGRAPHIC SETTING:
Landforms: mountains
Parent material: gravelly colluvium derived from marble
Elevation: 545 to 712 feet
Slope: 6 to 25 percent
Annual precipitation: about 22 inches
Annual temperature: about 25 degrees F
Frost-free period: 60 to 90 days

GEOGRAPHICALLY ASSOCIATED SOILS: These include Tigahaha and Tuksuk soils. Tigahaha soils are well drained, moderately deep, and occur on mountains. Tuksuk soils are very poorly drained, moderately deep, and occur on mountains.

DRAINAGE AND PERMEABILITY: Well drained, medium runoff. Saturated hydraulic conductivity is moderately high to high in the above the bedrock and very low in the bedrock.

USE AND VEGETATION: Used for military use and wildlife habitat. Native vegetation is dwarf herbaceous vegetation.

DISTRIBUTION AND EXTENT: MLRA 240, Nulato Hill-Southern Seward Peninsula Highlands, Alaska. The series is of small extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: WASILLA, ALASKA

SERIES ESTABLISHED: Steward River Training Site, Alaska, 2005

REMARKS: Diagnostic features and horizons recognized in this profile include:
Mollic epipedon: 1 to 11 inches. (A horizon)
Lithic contact: 17 inches. (R horizon)
Loamy-skeletal particle size control section: 10 to 17 inches
Temperature regime: cryic

ADDITIONAL DATA:

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National Cooperative Soil Survey
U.S.A.