LOCATION MCCREE WAEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, isotic, frigid Andic Haploxerepts
TYPICAL PEDON: McCree stony ashy fine sandy loam - under ponderosa pine and Douglas-fir on a 55 percent convex southwest-facing backslope at an elevation of 4,200 feet. (Colors are for dry soil unless otherwise stated. All textures are apparent field textures.)
Oe--0 to 1 inch; partially decomposed forest litter; moderately acid (pH 6.0).
A--1 to 1 1/2 inch; dark grayish brown (10YR 4/2) stony ashy fine sandy loam, black (10YR 2/1) moist; weak fine crumb structure; soft, very friable, nonsticky and nonplastic; many fine and medium roots; many fine tubular pores; 5 percent pumice, 15 percent pebbles, 5 percent cobbles and 5 percent stones; NaF pH 10.1; neutral (pH 7.0); abrupt smooth boundary. (0 to 1 inch thick)
E--1 1/2 to 6 inches; light brownish gray (10YR 6/2) stony ashy fine sandy loam, dark grayish brown (10YR 4/2) moist; weak fine crumb structure; soft, very friable, nonsticky and nonplastic; many fine and medium roots; many fine and medium tubular pores; 5 percent pumice, 15 percent pebbles, 5 percent cobbles and 5 percent stones; NaF pH 10.1; neutral (pH 6.9); gradual wavy boundary. (3 to 7 inches thick)
Bw--6 to 20 inches; very pale brown (10YR 7/3) very stony ashy fine sandy loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; many fine and medium roots; many fine and medium tubular pores; 30 percent pebbles, 5 percent cobbles and 15 percent stones; NaF pH 10.1; slightly acid (pH 6.2); gradual wavy boundary. (10 to 19 inches thick)
2C1--20 to 37 inches; very pale brown (10YR 7/4) extremely stony sandy loam, yellowish brown (10YR 5/4) moist; massive; slightly hard, friable, nonsticky and nonplastic; common medium and coarse roots; many medium and coarse tubular pores; 5 percent pumice, 20 percent pebbles, 5 percent cobbles and 45 percent stones; NaF pH 9.2; neutral (pH 6.8); gradual wavy boundary. (15 to 22 inches thick)
2C2--37 to 57 inches; yellow (10YR 7/6) extremely stony sandy loam, yellowish brown (10YR 5/6) moist; massive; slightly hard, friable, nonsticky and nonplastic; few fine roots; common fine tubular pores; 35 percent pebbles, 15 percent cobbles, and 25 percent stones; NaF pH 9.2; neutral (pH 6.8); abrupt irregular boundary. (10 to 20 inches thick)
2R--57 inches; fractured rhyolite.
TYPE LOCATION: Chelan County, Washington; on south slope of Forest Mountain; about 1 mile up Spur Road off road 2719; 1,300 feet east and 800 feet north of southwest corner of sec. 13, T. 27 N., R. 20 E.
RANGE IN CHARACTERISTICS: Mean annual soil temperature at 20 inch depth is estimated to be 45 to 46 degrees F. These soils are usually moist, but are dry in all parts for 60 to 75 consecutive days following summer solstice. Solum is 14 to 27 inches thick and depth to bedrock ranges from 40 to 60 inches. The particle-size control section averages 35 to 70 percent rock fragments. The influence of volcanic ash extent is 14 to 27 inches. The upper 7 to 14 inches has an estimated moist bulk density of 0.80 to 1.00 g/cc, volcanic ash content of 5 to 20 percent, acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron of 1.0 to 2.0 percent, and 15-bar water retention of 5 to 12 percent for air dried samples. Below 14 inches the acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron is 0.40 to 1.0 percent.
The A horizon, where present, has value of 4 or 5 dry, 2 or 3 moist, and chroma of 1 or 2 dry or moist.
The E horizon has value of 5 through 7 dry, 4 or 5 moist, and chroma of 1 or 2 dry or moist.
The Bw horizon has value of 5 through 7 dry, 3 through 5 moist, and chroma of 2 or 3 dry or moist. It is very stony fine sandy loam or very cobbly sandy loam. Reaction is slightly acid or neutral.
The 2C horizon has value of 5 through 7 dry, 4 or 5 moist and chroma of 3 through 6 dry or moist. Texture is extremely stony sandy loam, very stony sandy loam, or very cobbly sandy loam.
COMPETING SERIES: These are the Belzar, Bertolotti, Cliffdell, Hartill, Illabot, Inkler, Kloochman, Newbell, Ohscow, Rinker, Scotties, Sugarbowl, Talls, and Threemile series. Bertolotti, Cliffdell, Ohscow, Sugarbowl, and Talls soils have a mantle with more than 60 percent volcanic ash 7 to 14 inches thick. Belzar, Kloochman, and Rinker soils have a lithic contact at 20 to 40 inches. Hartill and Illabot soils have a paralithic contact at 20 to 40 inches. Inkler soils have a massive and firm 2C horizon in the lower part of the particle-size control section. Newbell soils have a solum 10 to 14 inches thick and are silt loam or loam in the cambic horizon. Scotties soils have a solum 12 to 22 inches thick and the upper 7 to 14 inches is more than 60 percent volcanic ash. Sugarbowl soils are dry for 45 to 60 consecutive days. Threemile soils have a 7 to 14 inch thick mantle with more than 60 percent volcanic ash and are calcareous in the lower part of the particle-size control section.
GEOGRAPHIC SETTING: McCree soils are on mountain sides and ridgetops with southerly aspects and have slopes of 8 to 90 percent. These soils formed in colluvium mostly from rhyolite or granodiorite, mixed with volcanic ash and pumice in the upper part. Elevations are 2,300 to 5,300 feet. These soils are in a climate with warm, dry summers and cool, moist winters. The average annual precipitation is 20 to 30 inches. The mean January temperature is about 24 degrees F; the mean July temperature is about 64 degrees F; and the mean annual temperature is about 42 to 45 degrees F. The growing season at 28 degrees F is about 130 to 175 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bisping, Dinkelman, Ramparter and Tyee series. Bisping soils are ashy over loamy. Dinkelman soils have a mollic epipedon and are coarse loamy. Ramparter soils are cindery. Tyee soils are loamy and 10 to 20 inches deep.
DRAINAGE AND PERMEABILITY: Well drained, slow to very rapid runoff, moderate permeability.
USE AND VEGETATION: Grazable woodland, wildlife habitat, watershed, and recreation. Native vegetation is ponderosa pine and Douglas-fir with an understory of bluebunch wheatgrass, pinegrass, lupine, arrowleaf balsamroot, and antelope bitterbrush.
DISTRIBUTION AND EXTENT: East slopes of the Cascade Mountains in east central Chelan County, Washington. This series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Chelan County (Entiat area) Washington, l971.
REMARKS: Diagnostic horizons and features recognized in this pedon are an ochric epipedon from 1 to 1 1/2 inch, an albic horizon from 1 1/2 to 6 inches, and a cambic horizon from 6 to 20 inches. The upper 7 to 14 inches meets andic intergrade but not andic soil properties, the lower part 14 to 27 inches meets vitrandic intergrade and not andic soil properties.
Classification changed 1/00 based on revision to Soil Taxonomy from Andic Xerochrepts to Andic Haploxerepts.
Depths to diagnostic horizons and features are measured from the top of the first mineral horizon.