LOCATION POGUE WAEstablished Series
TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Aridic Haploxerolls
TYPICAL PEDON: Pogue fine sandy loam, rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 6 inches grayish brown (10YR 5/2) fine sandy loam, very dark grayish brown (10YR 3/2) moist; weak medium platy structure; soft, very friable, slightly sticky and nonplastic; many fine roots; few fine tubular pores; neutral (pH 6.8); clear smooth boundary. (2 to 12 inches thick)
BA--6 to 12 inches; yellowish brown (10YR 5/4) gravelly fine sandy loam, dark brown (10YR 3/3) moist; weak coarse prismatic structure; soft, very friable, nonsticky and nonplastic; 25 percent gravel; common fine roots; few fine tubular pores; neutral (pH 6.6); clear smooth boundary. (4 to 10 inches thick)
Bw--12 to 29 inches; yellowish brown (10YR 5/4) gravelly fine sandy loam, dark yellowish brown (10YR 3/4) moist; weak coarse prismatic structure; soft, very friable, nonsticky and nonplastic; 25 percent gravel; common fine roots; few fine tubular pores; neutral (pH 6.6); clear smooth boundary. (8 to 20 inches thick)
2C--29 to 60 inches; multicolored very gravelly sand; single grain; loose; few fine roots; 40 percent gravel, 5 percent cobbles; neutral (pH 7.0).
TYPE LOCATION: Okanogan County, Washington; 1,500 feet WNW from Omak Airport terminal building across runway and along farm road at a point 50 feet south of the road in NE1/4 NE1/4 NW1/4 section 11, T.34N., R.26E., WM.
RANGE IN CHARACTERISTICS: These soils are usually dry in all parts between a depth of 8 and 24 inches for more than half the time when the soil temperature is greater than 41 degrees F. The mean annual soil temperature is 48 to 55 degrees F. The mollic epipedon ranges from 7 to 16 inches in thickness. Depth to the lithologic discontinuity ranges from 20 to 40 inches. The upper part of the particle-size control section is 5 to 10 percent clay, less than 50 percent sand coarser than very fine and 15 to 35 percent coarse fragments. The lower part of the particle-size control section is 35 to 70 percent coarse fragments, 2 to 10 percent clay and 75 to 95 percent sand.
The A and BA horizon has value of 4 or 5 dry, and chroma of 2 or 3 moist. Reaction is slightly acid to slightly alkaline.
The Bw horizon has value of 4 through 6 dry, 4 or 5 moist, and chroma of 3 or 4 dry or moist. It is fine sandy loam, sandy loam, loam, or very fine sandy loam, and is gravelly or cobbly. Reaction is slightly acid to slightly alkaline.
The 2C horizon is multicolored. It is loamy sand, loamy coarse sand, sand, or coarse sand and is very gravelly, very cobbly, or extremely gravelly. Reaction ranges from neutral to moderately alkaline.
COMPETING SERIES: These are the Aeneas and Leavers series. Aeneas soils lack coarse fragments in the lower part of the particle-size control section. Leavers soils have less than 10 percent rock fragments in the upper part of the particle-size control section.
GEOGRAPHIC SETTING: Pogue soils are on glacial outwash terraces and terrace escarpments at elevations of 600 to 2,200 feet. Slopes are 0 to 65 percent. The soils formed in loess and glacial outwash. Average annual precipitation is 8 to 12 inches. These soils occur in a climate of hot, dry summers and cold, moist winters. The average January temperature is 24 degrees F.; the average July temperature is 75 degrees F.; and the mean annual temperature is 47 to 51 degrees F. The frost free season is 140 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cashmere, Cashmont, Ellisforde, Ewall, Farrell, Malott, Okanogan, Peshastin, Quincy, Skaha, Strat, and Tonasket soils and the competing Aeneas soils. Cashmere, Cashmont, Farrell, Malott, Okanogan, and Tonasket soils are coarse-loamy. Ellisforde soils are coarse-silty. Ewall and Quincy soils are sandy throughout and lack a mollic epipedon. Peshastin and Strat soils are loamy-skeletal. Skaha soils are sandy-skeletal and lack a mollic epipedon.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow to rapid runoff; moderately rapid permeability in the A and B horizons and very rapid in the 2C horizon.
USE AND VEGETATION: Principal uses are irrigated orchards, irrigated hay and pasture, livestock grazing, and wildlife habitat. Native vegetation is bluebunch wheatgrass, Sandberg bluegrass, big sagebrush, antelope bitterbrush, common yarrow, buckwheat, needleandthread, arrowleaf balsamroot, silky lupine, and 3-tip sagebrush.
DISTRIBUTION AND EXTENT: North central Washington. This series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Chelan County Area, Washington, 1969.
REMARKS: Diagnostic horizons and features recognized in this soil are a mollic epipedon from the surface to 12 inches, a cambic horizon from 12 to 29 inches, a lithologic discontinuity at 29 inches, and 45 percent coarse-fragments in the 2C horizon.