LOCATION MCDANIELAKE WAEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, isotic, frigid Andic Haploxeralfs
TYPICAL PEDON: McDanielake ashy sandy loam - forestland, on an 18 percent south-facing slope at an elevation of 3,600 feet. (Colors are for dry soil unless otherwise stated. All textures are apparent field textures)
Oi--0 to 1 inch; partially decomposed forest litter mixed with small amounts of 1980 Mt. St. Helens volcanic ash. (1 to 2 inches thick)
A1--1 to 5 inches; light brown (7.5YR 6/4) ashy sandy loam, dark brown (7.5YR 3/4) moist; weak medium granular structure; soft, very friable, nonsticky and nonplastic; many very fine and fine and common medium and coarse roots; many very fine and fine irregular pores; 20 percent pumice less than 2 mm; 10 percent gravel; neutral (pH 6.8); gradual smooth boundary.
A2--5 to 12 inches; brown (7.5YR 5/4) gravelly ashy sandy loam, dark reddish brown (5YR 3/4) moist; weak fine subangular blocky structure parting to weak medium granular; soft, very friable, nonsticky and nonplastic; common very fine, fine and few medium roots; many very fine irregular pores; 15 percent gravel and 10 percent cobbles; neutral (pH 6.6); clear smooth boundary. (Combined thickness of A horizon is 7 to 14 inches)
2Bt1--12 to 23 inches; strong brown (7.5YR 5/6) extremely cobbly loam, brown (7.5YR 4/3) moist; weak fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine, common fine and medium roots; common very fine and fine irregular pores; few faint clay films on the faces of peds; 30 percent gravel and 30 percent cobbles; slightly acid (pH 6.4); abrupt smooth boundary.
2Bt2--23 to 42 inches; light yellowish brown (10YR 6/4) extremely cobbly loam, dark yellowish brown (10YR 4/4); moderate medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; many very fine and fine irregular pores; few distinct clay films on faces of peds; 30 percent gravel and 40 percent cobbles; slightly acid (pH 6.4); clear smooth boundary. (Combined thickness of the 2Bt horizon is 25 to 40 inches)
2BC--42 to 62 inches; light yellowish brown (10YR 6/4) extremely cobbly loam, dark yellowish brown (10YR 4/4) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine, few fine and medium roots; many very fine and fine irregular pores; 35 percent gravel and 45 percent cobbles; slightly acid (pH 6.4).
TYPE LOCATION: Yakima County, Washington about 6 miles west of Cliffdell, Washington; about 500 feet north and 2,500 feet west of the southeast corner of section 35, T. 17 N., R. 15 E.; Latitude 46 degrees, 54 minutes, 50 seconds N.and Longitude 120 degrees, 55 Minutes, 40 seconds W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature ranges from 44 to 46 degrees F. These soils are usually moist but are dry for 60 to 90 consecutive days following the summer solstice. Thickness of andic soil material is 7 to 14 inches. It has an estimated moist bulk density of 0.85 to 1.0 g/cc, 25 percent or more glass, acid-oxalate extractable aluminum plus one-half the acid-oxalate extractable iron of more than 1 percent, phosphorus retention of 25 percent to 40 percent and 15 bar water retention of 8 to 12 percent for air dried samples. The particle-size control section contains 35 to 70 percent rock fragments and 18 to 35 percent clay.
The A horizon has a hue of 5YR to 10YR and value of 5 or 6 dry. The A2 horizon is ashy sandy loam or gravelly ashy sandy loam.
The 2Bt horizon has a hue of 5YR to 10YR, value of 5 or 6 dry, 3 or 4 moist and chroma of 3 or 4 moist. It is very gravelly loam, very gravelly clay loam or extremely cobbly loam.
The 2BC horizon has a value of 5 or 6 dry, 4 or 5 moist and chroma of 4 or 5 dry or moist. It is very gravelly loam or extremely cobbly loam.
COMPETING SERIES: These are the Goshawk (T), Rondovy (T), and Satus (T) series. Soils with a similar classification and mixed mineralogy are the Gosch (T) and Weste (T) series. Rondovy soils are dominated with rock fragments of glacial till origin from metasedimentary bedrock. Goshawk and Weste soils are 20 to 40 inches deep to andesite or basalt. Gosch soils are 40 to 60 inches deep to a paralithic contact. Satus soils have 5 to 30 percent volcanic glass in the ash mantle and 10 to 18 percent clay in the particle-size control section.
GEOGRAPHIC SETTING: McDanielake soils are on mountain side slopes and ridges. Slopes are 0 to 70 percent. These soils formed in colluvium from basalt or andesite with a mantle of volcanic ash. Elevations are 2,500 to 4,800 feet. The climate is characterized by warm, dry summers and cool, moist winters. The mean annual precipitation is 25 to 50 inches. The average January temperature is about 26 degrees F. and the average July temperature is about 65 degrees F. The mean annual temperature is 43 to 45 degrees F. The frost-free season is 70 to 110 days. The growing season at 28 degrees F. is 145 to 170 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bograp, Singh and Retep soils. Bograp soils are on mountain side slopes and are fine-loamy. Retep soils are on mountain side slopes and ridges and are moderately deep to a paralithic contact. Singh soils are on mountain side slopes and are ashy over loamy-skeletal.
DRAINAGE AND PERMEABILITY: Well drained, very slow to very rapid runoff; moderate permeability.
USE AND VEGETATION: This soil is used mainly for timber production, wildlife habitat and recreation. Native vegetation is grand fir, ponderosa pine, Douglas fir and western larch with an understory of Cascade Oregongrape, pinegrass and elksedge.
DISTRIBUTION AND EXTENT: Yakima and Kittitas Counties, Washington. MLRA 6. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Wentachee National Forest, Yakima County, Washington, 2003. Source of name is McDaniel Lake in the Naches Ranger District.
REMARKS: Diagnostic horizons and features recognized in this pedon include:
Andic soil properties - 1 to 12 inches (A1 and A2 horizons)
Ochric epipedon - 1 to 12 inches (A1 and A2 horizons)
Argillic horizon - 12 to 42 inches (2Bt1 and 2Bt2 horizons)
PSCS - zone from 12 to 32 inches (2Bt1 and 2Bt2 horizons)
Depths to diagnostic horizons and features are measured from the top of the first mineral horizon.