LOCATION TEEWINOT WY+CO IDEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Lithic Humicryepts
TYPICAL PEDON: Teewinot gravelly sandy loam - rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 15 inches; grayish brown (10YR 5/2) very gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; moderate fine granular structure; soft, very friable; 25 percent angular granitic pebbles, 5 percent cobbles, and 5 percent stones; medium acid (pH 6.0); abrupt wavy boundary. (10 to 20 inches thick)
R--15 inches; granite.
TYPE LOCATION: Teton County, Wyoming; in unsectionized area. Site #53, Photo 1-132.
RANGE IN CHARACTERISTICS: Depth to bedrock ranges from 10 to 20 inches. The mean annual soil temperature is 32 to 36 degrees F. The control section is sandy loam modified with 30 to 75 percent angular pebbles, cobbles, and stones. Base saturation ranges from 20 to 50 percent. Hue is 10YR or 7.5YR, value is 4 or 5 dry, 2 or 3 moist, and chroma is 2 or 3. It is medium acid or strongly acid.
COMPETING SERIES: This is the Yellowstone series. Yellowstone soils are very strongly acid, have average annual soil temperature warmer than 36 degrees F. and overlie basalt.
GEOGRAPHIC SETTING: Teewinot soils are on strongly sloping to very steep mountainsides. Slopes are 10 to 70 percent. The soils formed in material weathered in place from granite. Elevation is 6,500 to 11,000 feet. The mean annual precipitation is 30 to 60 inches, and the mean annual temperature is about 30 to 34 degrees F., up to 38 degrees F. in Idaho.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Leighcan and Moran soils. Leighcan soils lack an umbric epipedon and are deeper than 40 inches. Moran soils lack bedrock above a depth of 40 inches. These soils are on landscape positions similar to Teewinot soils.
DRAINAGE AND PERMEABILITY: Well drained; medium to very rapid runoff; moderately rapid permeability.
USE AND VEGETATION: These soils are used for recreation and wildlife habitat. Native vegetation is wild buckwheat, bluebunch wheatgrass, poa, carex, low sagebrush, fern, and mountainlover.
DISTRIBUTION AND EXTENT: In the mountains of western Wyoming and the southern part of the Idaho Batholith. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Teton County, Wyoming, Grand Teton National Park Area; 1975.