LOCATION BADGERMONT WAEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Pachic Ultic Argixerolls
TYPICAL PEDON: Badgermont cobbly loam - cropland, on a nearly level east-facing slope at 2,580 feet elevation. (Colors are for dry soil unless otherwise stated. All textures are apparent field textures.)
Ap--0 to 9 inches; dark brown (10YR 4/3) cobbly loam, very dark brown (10YR 2/2) moist; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine roots; few fine irregular pores; 5 percent pebbles and 15 percent cobbles; neutral (pH 7.0); clear wavy boundary. (8 to 12 inches thick).
Bt1--9 to 16 inches; dark brown (10YR 4/3) cobbly loam, very dark grayish brown (10YR 3/2) moist; moderate medium subangular blocky structure; very hard, friable, slightly sticky and slightly plastic; common very fine and few fine roots; common fine irregular and tubular and few medium tubular pores; 10 percent pebbles and 15 percent cobbles; many distinct clay films on faces of peds; neutral (pH 7.0); clear wavy boundary.
Bt2--16 to 25 inches; dark brown (10YR 4/3) very cobbly loam, dark brown (10YR 3/3) moist; very hard, friable, slightly sticky and moderately plastic; few very fine roots; few fine irregular and tubular pores; 20 percent pebbles and 30 percent cobbles; common distinct clay films on faces of peds; neutral (pH 7.0); clear wavy boundary.
Bt3--25 to 35 inches; yellowish brown (10YR 5/4) extremely cobbly clay loam, dark brown (10YR 4/3) moist; moderate medium subangular blocky structure; very hard, firm, moderately sticky and moderately plastic; few very fine roots; few fine irregular tubular pores; 30 percent pebbles and 30 percent cobbles; many distinct clay films on faces of peds; neutral (pH 7.0); abrupt wavy boundary.
Bt4--35 to 38 inches; light yellowish brown (10YR 6/4) extremely cobbly clay loam, dark yellowish brown (10YR 4/4) moist; strong medium subangular blocky structure; very hard, firm, moderately sticky and moderately plastic; few very fine roots; few fine tubular pores; 30 percent rounded pebbles and 40 percent rounded cobbles; common distinct clay films on faces of peds; neutral (pH 7.0); abrupt smooth boundary. (Combined thickness of Bt horizon is 12 to 28 inches)
2R--38 inches; basalt
TYPE LOCATION: Douglas County, Washington; about 4 miles south of Waterville; about 2,200 feet south and 250 feet west of the northeast corner of section 3, T. 24 N., R. 22 E. (Latitude 47 degrees 36' 24"N, Longitude 120 degrees 02' 54"W)
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 49 to 51 degrees F. These soils are usually moist but are dry for 90 to 105 consecutive days following the summer solstice. The mollic epipedon is 20 to 26 inches thick and includes the upper part of the Bt horizon. Clay content of the particle-size control section ranges from 18 to 27 percent. Rock fragments in the particle-size control section range from 25 to 55 percent. The lower Bt averages 50 to 70 percent pebbles and cobbles. Depth to basalt is 20 to 40 inches.
The Ap horizon has value of 4 or 5 dry, 2 or 3 moist and chroma of 2 or 3 dry. It is 15 to 25 percent pebbles and cobbles by volume. Base saturation is 60 to 75 percent.
The Bt1 and Bt2 horizons have value of 4 or 5 dry and chroma of 2 or 3 dry. It is a cobbly loam or very cobbly loam. Base saturation is 65 to 85 percent with some part having base saturation of less than 75 percent.
The Bt3 and Bt4 horizons have value of 5 or 6 dry, 4 or 5 moist and chroma of 3 or 4 moist. It is very cobbly loam or extremely cobbly loam. Base saturation is 75 to 90 percent.
COMPETING SERIES: These are the Oreoke (T), and Tamming series. Oreoke and Tamming soils are more than 40 inches to bedrock.
GEOGRAPHIC SETTING: Badgermont soils are in drainageways on piedmont slopes at elevations of 2,500 to 3,200 feet. Slopes are 3 to 15 percent. Climate is characterized by warm, dry summers and cool, moist winters. Average annual precipitation is 12 to 15 inches. Average January temperature is about 26 degrees F.; average July temperature is about 70 degrees F. and average annual temperature is 47 to 49 degrees F. Frost-free season is 110 to 165 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Broadax, Spofford and Ebadlow soils. Broadax soils are on hills and are very deep. Spofford soils are on uplands, are deep, and have a natric horizon. Ebadlow soils are on alluvial fans and are very deep.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability. These soils may be occasionally flooded for brief periods during spring runoff.
USE AND VEGETATION: Used mainly for cropland. Wheat and barley are the principal crops. A small amount is used for livestock grazing and wildlife habitat. The potential native vegetation is basin wildrye, basin big sagebrush, Idaho fescue, lupine and Wyoming big sagebrush.
DISTRIBUTION AND EXTENT: Douglas County, Washington. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Douglas County, Washington, 1998.
REMARKS: Diagnostic horizons and features recognized in this pedon are a mollic epipedon from the surface to 25 inches, an argillic horizon from 9 to 38 inches and a lithic contact at 38 inches. The particle-size control section is the zone from 9 to 29 inches (the Bt1, Bt2 and part of the Bt3 horizons).
ADDITIONAL DATA: NSSL data from other pedons of similar mineralogy in the county indicates that the base saturation (by sum of cations) is less than 75 percent in some subhorizon within 30 inches of the surface.