LOCATION SHANTY WAEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, isotic Lithic Dystrocryepts
TYPICAL PEDON: Shanty extremely gravelly medial sandy loam - forestland, on a 66 percent west-facing slope at an elevation of 3,720 feet in a Western hemlock/Pacific rhododendron-salal plant association. (When described on May 14, 1992, the soil was moist throughout. Colors are for dry soil unless otherwise stated.)
Oi--0 to 1 inch; slightly decomposed needles, leaves, and twigs; abrupt smooth boundary. (0.5 to 2 inches thick)
A--1 to 4 inches; brown (10YR 5/3) extremely gravelly medial sandy loam, very dark grayish brown (10YR 3/2) moist; weak very fine and fine granular and weak very fine subangular blocky structure; slightly hard, friable, nonsticky and nonplastic; weakly smeary; many very fine and fine roots; common very fine and fine irregular pores; 45 percent gravel, 15 percent cobbles; moderately acid (pH 5.8); abrupt wavy boundary. (2 to 7 inches thick)
Bw1--4 to 10 inches; yellowish brown (10YR 5/4) extremely gravelly sandy loam, dark brown (10YR 3/3) moist; weak very fine subangular blocky and weak very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; many very fine, fine, medium, and coarse roots; common very fine and fine irregular pores; 50 percent gravel, 25 percent cobbles; moderately acid (pH 5.6); clear wavy boundary.
Bw2--10 to 18 inches; yellowish brown (10YR 5/6) extremely cobbly sandy loam, dark yellowish brown (10YR 3/6) moist; weak very fine and fine subangular blocky and weak very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; many very fine, fine, and medium and common coarse roots; common very fine irregular pores; 30 percent gravel, 40 percent cobbles; moderately acid (pH 5.6); abrupt wavy boundary. (Combined thickness of the Bw horizon is 8 to 14 inches.)
R--18 inches; hard metavolcanic rock.
TYPE LOCATION: Clallam County, Washington, about 1.5 miles southwest of Mt. Zion, about 130 feet east and 1,900 feet south of the northwest corner of section 27, T. 28 N., R. 3 W. (Latitude 47 degrees, 54 minutes, 20 seconds N., Longitude 123 degrees, 1 minutes, 55 seconds W.)
RANGE IN CHARACTERISTICS: Mean annual soil temperature is 43 to 45 degrees F. The mean summer soil temperature is 45 to 47 degrees F. The mean winter soil temperature is 37 to 41 degrees F. These soils are usually moist but are dry in all parts of the soil moisture control section for 45 to 60 consecutive days in the 4 months following the summer solstice. Depth to bedrock is 10 to 20 inches. The particle-size control section has 60 to 90 percent rock fragments by volume and 8 to 18 percent clay.
The A horizon has value of 5 or 7 dry and chroma of 3 or 4 dry and 2 through 4 moist. It has a moist bulk density of 0.85 to 1.00 g/cubic centimeter and acid oxalate extractable aluminum plus one-half the iron is 1 to 2 percent.
The Bw horizon has value of 5 through 7 dry and 3 or 4 moist, and chroma of 4 or 6 dry and 3, 4, or 6 moist. It is extremely gravelly sandy loam or extremely cobbly sandy loam. Reaction is moderately or slightly acid.
COMPETING SERIES: These are the Discovery, Luckiamute, Whitecross, and Winberry series. All of these soils have a udic moisture regime.
GEOGRAPHIC SETTING: Shanty soils are on south-facing aspects of mountains. Slopes are 60 to 90 percent. The soils formed in colluvium from marine basalt. Elevations are 3,100 to 4,400 feet. Average annual precipitation is 40 to 70 inches. Average annual temperature is 42 to 44 degrees F. The frost-free season is 140 to 160 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bungalow, Deserter, Mueller, Snowcreek, and Tylerpeak soils. Bungalow soils are on mountain slopes and have a udic moisture regime. Deserter and Mueller soils are on mountain slopes and are very deep. Snowcreek and Tylerpeak soils are on mountain slopes and are 20 to 40 inches to bedrock. Bungalow, Mueller and Tylerpeak soils are on adjacent north slopes and have andic soil properties throughout a thickness of 14 inches or more.
DRAINAGE AND PERMEABILITY: Well drained; moderately rapid permeability.
USE AND VEGETATION: Wildlife habitat, recreation, and watershed. Native vegetation is Douglas-fir, western hemlock, subalpine fir, western white pine, lodgepole pine, Pacific rhododendron, salal, Oregon-grape, baldhip rose, and kinnikinnick.
DISTRIBUTION AND EXTENT: Clallam and Jefferson Counties, Washington; MLRA 3. Series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Clallam County, Washington, 2000; Olympic National Forest.
REMARKS: Diagnostic horizons and features recognized in this pedon are the following:
Ochric epipedon
Cambic horizon - 4 to 18 inches (Bw1 and Bw2 horizons)
Lithic contact - 18 inches
PSCS - 11 to 18 inches (Bw2 horizon)
Xeric soil moisture regime
All depths to diagnostic horizons and other features are measured from the top of the first mineral horizon.