LOCATION FRYINGPAN IDEstablished Series
TAXONOMIC CLASS: Loamy, mixed, superactive, frigid Lithic Haploxeralfs
TYPICAL PEDON: Fryingpan stony loam -- on a slightly concave slope of 2 percent, in native rangeland, at 5,615 feet elevation. The soil surface has a 1 percent cover of stones. When described on Sept. 16, 1980, the soil was moist to 9 inches and dry below. (Colors are for air-dry soil unless otherwise stated.)
A--0 to 3 inches; pale brown (10YR 6/3) stony loam, brown (10YR 4/3) moist; weak thin and medium platy structure parting to weak fine subangular blocky; slightly hard, very friable, nonsticky and nonplastic; many very fine and fine, and few medium roots; many very fine and fine, and few medium vesicular pores; 10 percent gravel, 1 percent stones; neutral (pH 6.6); clear smooth boundary. (2 to 7 inches thick)
Bt1--3 to 9 inches; light yellowish brown (10YR 6/4) clay loam, dark yellowish brown (10YR 4/4) moist; moderate fine and medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; common very fine and fine, and few medium roots; many very fine and fine, and few medium tubular pores; many thin clay films on faces of peds and in pores; 5 percent gravel; neutral (pH 6.6); abrupt smooth boundary.
Bt2--9 to 16 inches; light yellowish brown (10YR 6/4) clay loam, dark yellowish brown (10YR 4/4) moist; strong fine and medium angular blocky structure; very hard, friable, sticky and plastic; common fine, and few very fine and medium roots; common very fine, few fine and medium tubular pores; many moderately thick clay films on faces of peds and in pores; 5 percent gravel; slightly acid (pH 6.5); clear smooth boundary. (combined thickness of Bt horizons is 6 to 14 inches)
Btq--16 to 18 inches; light brown (7.5YR 6/4) loam, brown (7.5YR 4/4) moist; moderate fine and medium angular blocky structure; very hard, firm, slightly sticky and slightly plastic; few very fine and fine roots; common very fine and fine tubular pores; common moderately thick clay films on faces of peds and in pores; 10 percent gravel; few fine masses of silica; slightly acid (pH 6.4); abrupt wavy boundary. (0 to 6 inches thick)
2R--18 inches; densely welded rhyolitic tuff with thin discontinuous silica laminae.
TYPE LOCATION: Owyhee County, Idaho; about 27 miles west and 1 1/2 miles north of Grasmere; 1200 feet south and 100 feet east of the northwest corner of section 12, T.12 S., R.1 W.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 45 to 47 degrees F.
Average summer soil temperature - 65 to 67 degrees F.
Particle-size control section - 20 to 34 percent clay; 5 to 25 percent rock fragments
Depth to bedrock - 10 to 20 inches
Reaction (pH) - neutral or slightly acid
Bt horizon
Texture - CL or CB-CL
COMPETING SERIES: There are no competing series. Duckhill soils, in a closely related family, have more than 35 percent rock fragments in the particle-size control section.
GEOGRAPHIC SETTING: Fryingpan soils are on undulating to hilly structural benches. Slopes range from 2 to 15 percent. Elevation ranges from 5100 to 5700 feet. These soils formed in residuum from densely welded rhyolitic tuff. The climate is cool and moist in winter and warm and dry in summer. The average annual precipitation ranges from 12 to 15 inches and the average annual temperature ranges from 43 to 45 degrees F. The frost-free period is 75 to 90 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Hat, Nipntuck, Northcastle, and Wagonbox series. Hat, Nipntuck, and Wagonbox soils have greater than 35 percent rock fragments in the control section. Northcastle and Wagonbox soils have a duripan. All are on similar landscapes positions.
DRAINAGE AND PERMEABILITY: Well drained; medium or rapid runoff; moderately slow permeability.
USE AND VEGETATION: Fryingpan soils are used mainly for rangeland and wildlife habitat. The dominant natural vegetation is low sagebrush, Idaho fescue, and bluebunch wheatgrass.
DISTRIBUTION AND EXTENT: Southwestern Idaho. Fryingpan soils are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Owyhee County Area, Idaho, 1992.
REMARKS: Diagnostic horizons and features recognized in this pedon:
Ochric epipedon -zone 0 to 3 inches (A horizon)
Argillic horizon and particle-size control section - zone from 3 to 18 inches (Bt1, Bt2, and Btq horizons)
Lithic contact - the contact with bedrock at about 18 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 Reno MLRA office, without review of the soil series property data. The remainder of this document has not been updated.