LOCATION CARMODY WY+COEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, frigid Ustic Torriorthents
TYPICAL PEDON: Carmody very fine sandy loam-rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 8 inches; light brownish gray (10YR 6/2) very fine sandy loam, dark grayish brown (10YR 4/2) moist; weak fine and very fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine, fine, and medium roots; strongly effervescent, lime disseminated; moderately alkaline (pH 8.0); gradual wavy boundary. (4 to 10 inches thick)
C--8 to 25 inches; light brownish gray (10YR 6/2) very fine sandy loam, dark grayish brown (10YR 4/2) moist; moderate medium and coarse prismatic structure; slightly hard, friable, slightly sticky; few fine and many medium roots; strongly effervescent, lime disseminated; moderately alkaline (pH 8.2); abrupt wavy boundary. (16 to 30 inches thick)
Cr--25 to 60 inches; light brownish gray to white, calcareous siltstone containing fine grained sand.
TYPE LOCATION: Fremont County, Wyoming; SW1/4, SW1/4 of sec. 2, T. 30 N., R. 96 W.
RANGE IN CHARACTERISTICS: Depth to a paralithic contact is 20 to 40 inches. Depth to uniformly calcareous material is 0 to 10 inches. The mean annual soil temperature ranges from about 40 to 47 degrees F., and the mean summer soil temperature ranges from about 59 to 63 degrees F. The control section is very fine sandy loam or fine sandy loam, averaging 10 to 18 percent clay and more than 15 percent fine sand or coarser. Flat fragments or fine pebbles range from 0 to 15 percent. Thin, discontinuous horizons of carbonate accumulation occur immediately above the paralithic contact in some pedons.
The A horizon has hue of 2.5Y or 10YR, value of 4 through 6 dry, 3 through 5 moist, and chroma of 2 through 4. EC is less than 2 mmhos. Reaction is mildly or moderately alkaline.
The C horizon has hue of 2.5Y or 10YR, value of 4 through 7 dry, 3 through 5 moist, and chroma of 2 through 6. EC is less than 2 mmhos. Reaction is moderately or strongly alkaline.
COMPETING SERIES: These are the Goslin, Grieves(T), Querida, Riedel, Sham and Tebbs series. The Goslin, Grieves, Querida, Sham, and Tebbs soils do not have bedrock above 60 inches. The Riedel soils are similar but have fractured soft bedrock from 7 to 20 inches in which roots grow, but the soil is considered moderately deep.
GEOGRAPHIC SETTING: Carmody soils are on plateaus and hillslopes in intermountain basins. Slopes are 2 to 45 percent. The soils formed in calcareous material weathered from semiconsolidated fine grained sandstone or siltstone. The mean annual precipitation ranges from 10 to 17 inches of which about half falls as snow or rain in April, May, and early June. Elevation is 5,300 to 7,500 feet. The mean annual temperature is 39 to 45 degrees F., and the mean summer temperature is 58 to 65 degrees F. The frost-free season is 75 to 120 days depending upon aspect, elevation, and local air drainage.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Blackhall soils. Blackhall soils have a paralithic contact above a depth of 20 inches.
DRAINAGE AND PERMEABILITY: Well to somewhat excessively drained; medium to rapid runoff; moderate or moderately rapid permeability.
USE AND VEGETATION: These soils are used for rangeland. Native vegetation is black sagebrush, western wheatgrass, and threadleaf sedge.
DISTRIBUTION AND EXTENT: In the cold intermountain basins of Wyoming. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Fremont County, Wyoming, Lander Area; 1975.
REMARKS:Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon-- 0 to 8 inches (A)
Paralithic contact--25 inches (Cr)
Aridic moisture regime bordering on Ustic--Usually dry, moist in some parts for more than 25% of the time that the soil temperature is greater than 41 degrees F. at a depth of 20 inches.
The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Lakewood MLRA office, without review of the soil series property data. The remainder of this document has not been updated.