LOCATION ROSEBERRY IDEstablished Series
TAXONOMIC CLASS: Sandy, mixed Humic Cryaquepts
TYPICAL PEDON: Roseberry coarse sandy loam, pasture. (Colors are for dry soil unless otherwise noted.)
A1--0 to 7 inches; dark gray (10YR 4/1) coarse sandy loam, very dark gray (2.5Y 3/1) moist; few fine faint very dark brown (7.5YR 2/2) moist, mottles; moderate fine and very fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many fine roots; medium acid (pH 5.7); gradual smooth boundary. (5 to 9 inches thick)
A2--7 to 13 inches; gray (10YR 5/1) coarse sandy loam, very dark gray (2.5Y 3/1) moist; few fine faint very dark brown (7.5YR 2/2) moist, mottles; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many fine roots; common very fine pores; medium acid (pH 5.5); clear irregular boundary. (4 to 14 inches thick)
C1--13 to 20 inches; light brownish gray (10YR 6/2) loamy coarse sand, dark brown (10YR 3/3) and dark grayish brown (10YR 4/2) moist; common medium faint dark gray and dark olive mottles; weak medium subangular blocky structure parting to moderate fine granular; friable, slightly sticky and slightly plastic; common fine roots; many very fine pores; medium acid (pH 5.6); gradual wavy boundary. (5 to 30 inches thick)
C2--20 to 35 inches; pale brown (10YR 6/3) loamy coarse sand, brown (10YR 4/3) and grayish brown (2.5Y 5/2) moist; single grained; very friable, slightly sticky; few fine roots; many very fine pores; medium acid (pH 5.6); clear wavy boundary. (0 to 20 inches thick)
C3--35 to 55 inches; light brownish gray (10YR 6/2) coarse sand, brown (10YR 4/3) moist; single grained; very friable; medium acid (pH 5.6); gradual wavy boundary. (0 to 30 inches thick)
2C--55 to 64 inches; light brownish gray (10YR 6/2) fine sandy loam, brown (7.5YR 4/3) and dark yellowish brown (10YR 4/4) moist; light olive gray (5Y 6/2) mottles, moist; massive; friable, slightly sticky and slightly plastic; medium acid (pH 5.9); abrupt wavy boundary. (0 to 20 inches thick)
TYPE LOCATION: Valley County, Idaho; about 4 miles north and 1 mile east of Donnelly; 700 feet west and 40 feet south of the northeast corner of sec. 26, T. 17 N., R. 3 E.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 40 to 45 degrees F.
Average summer soil temperature - 53 to 55 degrees F.
Depth to contrasting textures - 40 to 60 inches
Base saturation - 25 to 50 percent
A horizon
Value - 3 through 5 dry, 2 or 3 moist
Chroma - 0 through 2 dry and moist
Reaction - moderately to strongly acid
C horizon
Value - 4 through 6 dry, 3 through 5 moist
Chroma - 2 through 4 dry and moist
Reaction - moderately to strongly acid
COMPETING SERIES: This is the similar Melton series. Melton soils have contrasting textures in the control section.
GEOGRAPHIC SETTING: Roseberry soils are on outwash plains and stream terraces. Slopes are 0 to 3 percent. The soils formed in coarse textured granitic glacial outwash. Elevations are 3,800 to 5,000 feet. Average annual precipitation is 22 to 24 inches. Average January temperature is 20 degrees F.; mean July temperature is 64 degrees F. Average annual temperature is 38 degrees to 43 degrees F. Frost-free season is about 60 to 80 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Archabal and Donnel soils and the competing Melton soils. Archabal and Donnel soils are well drained and lack mottles.
DRAINAGE AND PERMEABILITY: Poorly drained; slow runoff; moderately rapid permeability.
USE AND VEGETATION: Used mainly for pasture, some small grains and clover. Vegetation is mainly grasses, forbs, and shrubs.
DISTRIBUTION AND EXTENT: Distribution is in high mountain valleys; mainly in Valley County, Idaho. The soil is inextensive.
MLRA OFFICE RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Valley Area, Idaho, 1977.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon - the zone from 0 to 13 inches (A1 and A2 horizons)
Mottles - occur at the surface
Temperature regime - cryic
Moisture regime - aquic