LOCATION DOUGCLIFF MTEstablished Series
TAXONOMIC CLASS: Euic, frigid Typic Haplofibrists
TYPICAL PEDON: Dougcliff mucky peat, marsh (colors are for moist soil unless otherwise noted).
Oi1--0 to 3 inches; black (10YR 2/1) and black (10YR 2/1) rubbed and pressed, mucky peat; about 80 percent fiber and raw herbaceous plant material, and 70 percent rubbed; massive; nonsticky and nonplastic; 75 percent Lycopodium mosses and 25 percent herbaceous; neutral (pH 7.2 in water); clear boundary. (0 to 6 inches thick)
Oi2--3 to 14 inches; dark reddish brown (5YR 3/2) and dark brown (7.5YR 3/2) rubbed and pressed, mucky peat; about 90 percent fiber, about 80 percent rubbed; massive; nonsticky and nonplastic; 90 percent herbaceous and 10 percent Lycopodium mosses; neutral (pH 7.0 in water); clear wavy boundary. (9 to 20 inches thick)
Oi3--14 to 38 inches; dark reddish brown (5YR 2/2) and dark reddish brown (5YR 2/2) rubbed and pressed, mucky peat; about 85 percent fiber, about 80 percent rubbed; massive; nonsticky and nonplastic; neutral (pH 7.2 in water); gradual wavy boundary. (15 to 30 inches thick)
Oi4--38 to 60 inches; dark reddish brown (5YR 3/2) and dark reddish brown (5YR 3/2) rubbed and pressed, mucky peat; about 75 percent fiber rubbed; massive; nonsticky and nonplastic; 95 percent herbaceous; slightly alkaline (pH 7.4 in water).
TYPE LOCATION: Teton County, Montana; 2,500 feet west and 800 feet south of the NE corner of sec. 13, T. 24 N., R. 8 W.
RANGE IN CHARACTERISTICS:
Soil temperature - 38 to 47 degrees F.
Depth of organic material - greater than 51 inches.
Depth to water table - 0 to 6 inches.
Some pedons have mineral materials at depths of 51 to 60 inches. Some pedons have an Oe horizon.
Oi1 horizon - Hue: 10YR or 7.5YR
Value: 2 or 3 moist
Chroma: 1 or 2
Fiber content: 80 to 90 percent unrubbed; 65 to 75 percent rubbed
Reaction: pH 6.1 to 7.8
Oi2 horizon - Hue: 10YR, 7.5YR, or 5YR
Value: 2 or 3 moist
Chroma: 1 or 2
Fiber content: 85 to 95 percent unrubbed; 75 to 85 percent rubbed
Reaction: pH 6.1 to 7.8
Oi3 horizon - Hue: 10YR, 7.5YR, or 5YR
Value: 2 or 3 moist
Fiber content: 80 to 90 percent unrubbed; 70 to 80 percent rubbed
Reaction: pH 6.6 to 7.8
Oi4 horizon - Hue: 10YR, 7.5YR, or 5YR
Value: 3 moist
Fiber content: 75 to 85 percent unrubbed; 60 to 75 percent rubbed
Reaction: pH 6.1 to 7.8
COMPETING SERIES:
There are no competing series.
GEOGRAPHIC SETTING:
Landform - depressional areas on broad alluvial fans, flood plains and stream terraces.
Elevation - 3,500 to 6,200 feet.
Slope- 0 to 2 percent.
Parent material - fibrous materials derived mainly from herbaceous vegetation.
Climate - long, cold winters; cool, moist springs; warm summers.
Mean annual precipitation - 10 to 19 inches.
Mean annual air temperature - 36 to 45 degrees F.
Frost-free period - 70 to 105 days.
DRAINAGE AND PERMEABILITY: Very poorly drained; moderately rapid permeability.
USE AND VEGETATION: Dougcliff soils are used only for wildlife. Potential native vegetation is mainly of mosses, sedges, rushes, and bulrushes.
DISTRIBUTION AND EXTENT: Dougcliff soils are of limited extent in central Montana along the eastern front of the Rocky Mountains and in intermountain valleys.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Teton and Pondera Counties, 1991. Series proposed in Teton County, Montana, 1980.
REMARKS: Soil interpretation record: MT0459. Diagnostic horizons and features recognized in this pedon are: a histic epipedon (organic material) 60 inches thick (Oi, Oi2, Oi3, Oi4 horizons); a water table at or near the surface during most of the year; a control section from the surface to 60 inches (all horizons). Dougcliff soils have a frigid temperature regime and an aquic moisture regime.