LOCATION TYEE WAEstablished Series
TAXONOMIC CLASS: Loamy, isotic, mesic, shallow Vitrandic Haploxerolls
TYPICAL PEDON: Tyee gravelly sandy loam on a 42 percent southwest facing back slope under bunchgrass and antelope bitterbrush at 2,320 feet elevation. (Colors are for dry soil unless otherwise stated.)
A1--0 to 2 inches; grayish brown (10YR 5/2) gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; many fine roots; few fine tubular pores; l5 percent pebbles; neutral (pH 6.6); clear smooth boundary. (1 to 9 inches thick)
A2--2 to 11 inches; brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 3/3) moist; weak medium granular structure; soft, very friable, nonsticky and nonplastic; common fine and medium roots; common fine and few medium pores; 15 percent pebbles; neutral (pH 6.8); gradual wavy boundary. (0 to 9 inches thick)
C--11 to 19 inches; very pale brown (10YR 7/3) gravelly coarse sandy loam, brown (10YR 5/3) moist; massive; slightly hard, friable, nonsticky and nonplastic; few fine and medium roots; common fine and few medium pores; 20 percent pebbles; neutral (pH 6.8) abrupt wavy boundary. (0 to 9 inches thick)
Cr--19 inches; partially weathered granodiorite.
TYPE LOCATION: Chelan County, Washington; 4 miles north of Winesap, 1,900 feet south and 900 feet east of northwest corner, sec. 29, T. 27 N., R. 21 E., W.M.
RANGE IN CHARACTERISTICS: Mean annual soil temperature is estimated to range from 48 to 51 degrees F. These soils are usually moist, but are dry in all parts for 90 to 105 consecutive days following summer solstice in most years. Depth to a paralithic contact is 10 to 20 inches. The mollic epipedon is 7 to 18 inches thick. Rock fragments (mostly angular fine 2 to 20 mm pebbles) average 10 to 35 percent. The particle-size control section has an estimated moist bulk density of 1.20 to 1.55 g/cc, volcanic glass content of 5 to 20 percent, acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron of 0.40 to 1.0 percent and 15-bar water retention of 5 to 10 percent for air dried samples. The soil averages 3 to 10 percent clay. Base saturation (by sum of the cations) is assumed to be 50 to 75 percent throughout. Reaction is slightly acid or slightly alkaline.
The A horizon has value of 4 or 5 dry, 2 or 3 moist, and chroma of 2 or 3 dry, 1 through 3 moist. Some pedons have a gravelly coarse sandy loam lower surface layer. The A horizon is 15 to 30 percent pebbles and 0 to 5 percent cobbles. Some pedons are stony.
Some pedons have a Bw horizon that has hue of 10YR, value of 5 or 6 dry, 3 or 4 moist, and chroma of 3 or 4 dry or moist. It is gravelly loam or gravelly sandy loam, and is 15 to 30 percent pebbles and 0 to 5 percent cobbles.
The C horizon has value of 4 through 7 dry, 3 through 5 moist, and chroma of 3 through 6 dry or moist. It is sandy loam, or coarse sandy loam. It averages 10 to 35 percent rock fragments.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Tyee soils are on mountainsides and ridge tops that generally have a south aspect at elevations of 1,000 to 3,600 feet, although north slope phases are recognized. Slopes are 3 to 90 percent. These soils formed in residuum, colluvium, and slope alluvium from granite, quartz diorite, granodiorite quartz monzonite, or gneiss mixed with loess and a small amount of volcanic ash in the upper part. They are in a climate with warm, dry summers and cold, moist winters. The mean annual precipitation ranges from 12 to l8 inches. The average January temperature is about 22 degrees F, the average July temperature is about 70 degrees F, and the average annual temperature is about 48 degrees F. The frost-free season ranges from 110 to 155 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ardenmont, Bisping, Chumstick, Dinkelman, Dragoon, Entiat, Ginnis, Palmich, McCree, Skanid, and Swakane soils. Ardenmont, Bisping, Dinkelman, Dragoon, Ginnis, Palmich, and McCree soils are more than 20 inches deep. Chumstick soils are frigid and have a lithic contact. Entiat soils have an aridic moisture regime. Skanid and Swakane soils have more than 35 percent coarse fragments in the control section. Also, Swakane soils have a lithic contact at 10 to 20 inches.
DRAINAGE AND PERMEABILITY: Well-drained, slow to very rapid runoff, moderate permeability.
USE AND VEGETATION: Rangeland grazing, wildlife habitat, watershed, and recreation. Vegetation is bluebunch wheatgrass, antelope bitterbrush, buckwheat, arrowleaf balsamroot, and scattered ponderosa pine.
DISTRIBUTION AND EXTENT: North Central Washington. Series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Chelan County, Washington, 1969.
REMARKS: Diagnostic horizons and features recognized in this pedon are a mollic epipedon from the surface to 11 inches and a paralithic contact at 19 inches. This description reflects a change in classification due to Andisols order from loamy, mixed, mesic, shallow Ultic Haploxerolls to loamy, mixed, mesic Vitrandic Haploxerolls.