LOCATION BUNGALOW WAEstablished Series
TAXONOMIC CLASS: Medial-skeletal, ferrihydritic Lithic Haplocryands
TYPICAL PEDON: Bungalow extremely gravelly medial sandy loam - forestland, on an 88 percent north-facing slope at an elevation of 3,540 feet in a Pacific silver fir/Pacific rhododendron plant association. (When described on August 18, 1993 the soil was moist throughout. Colors are for moist soil unless otherwise stated. All textures are apparent field textures.)
Oi--0 to 1 inch; slightly decomposed needles, leaves, and twigs; abrupt smooth boundary. (0.5 to 2.5 inches thick)
A--1 to 5 inches; very dark grayish brown (10YR 3/2) extremely gravelly medial sandy loam, brown (10YR 5/3) dry; 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 and common medium and coarse roots; common very fine and fine irregular pores; 50 percent gravel, 20 percent cobbles; moderately acid (pH 5.6); clear wavy boundary. (3 to 7 inches thick)
Bw--5 to 10 inches; dark yellowish brown (10YR 3/4) extremely gravelly medial sandy loam, yellowish brown (10YR 5/4) dry; weak very fine and fine subangular blocky and weak very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; weakly smeary; many very fine and common fine, medium, and coarse roots; common very fine and fine irregular pores; 55 percent gravel, 20 percent cobbles; moderately acid (pH 5.8); abrupt wavy boundary. (1 to 7 inches.)
R--10 inches; hard metavolcanic rock.
TYPE LOCATION: Clallam County, Washington, about 3 miles east of Dirty Face Ridge, about 530 feet west and 790 feet south of the northeast corner of section 26, T. 28 N., R. 3 W. (Lat. 47 degrees 53 min 37 sec N. ,Long. 123 degrees 00 min 49 sec W.)
RANGE IN CHARACTERISTICS: Mean annual soil temperature is 43 to 45 degrees F. The mean winter soil temperature is 37 to 41 degrees F. The mean summer soil temperature is 45 to 47 degrees F. These soils are usually moist, and are dry in the soil moisture control section for 30 to 45 consecutive days following the summer solstice; udic moisture regime. Depth to bedrock is 4 to 10 inches. The particle-size control section from the mineral soil surface to the bedrock contact has andic soil properties with an estimated moist bulk density of 0.70 to 0.90 g/cc, acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron of 2 to 3 percent, phosphate retention of 85 to 100 percent, 15-bar water retention of 15 to 30 percent for air dried samples, and 60 to 90 percent rock fragments by volume. It has 1 to 2 cmol/kg of aluminum. Acid oxalate extractable iron is 1.5 to 3.0 percent.
The A horizon has value of 5 or 6 dry, and chroma of 2 through 4 moist and 3 or 4 dry. It has 5 to 10 percent organic matter.
The Bw horizon has value of 5 or 6 dry, and chroma of 4 or 6 moist and 3, 4, or 6 dry. It is extremely gravelly medial sandy loam, extremely cobbly medial sandy loam, or extremely gravelly medial loam. Reaction is strongly or moderately acid. It has 1 to 7 percent organic matter.
COMPETING SERIES: These are the Buckman, Constance, Graves, Weatherwax, and Yellowstone series. Buckman soils are dry for 0 to 30 consecutive days. Constance and Yellowstone soils are shallow. Graves soils have 2 to 12 cmol/kg of aluminum and organic matter is 15 to 40 percent. Weatherwax soils have a perudic moisture regime.
GEOGRAPHIC SETTING: Bungalow soils are on mid-slopes of mountains. Slopes are 60 to 90 percent. The soils formed in colluvium from volcanic and metavolcanic rock. Elevations are 2,900 to 4,200 feet. Average annual precipitation is 40 to 70 inches. Average annual temperature is 41 to 43 degrees F. The frost-free season is 130 to 150 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Mueller and Tylerpeak soils. Mueller soils are on mountain slopes and are very deep. Tylerpeak soils are on mountain slopes and are 20 to 40 inches to bedrock.
DRAINAGE AND PERMEABILITY: Well drained; moderately rapid permeability.
USE AND VEGETATION: Wildlife habitat, recreation, and watershed. Native vegetation is western hemlock, Pacific silver fir, Douglas-fir, Pacific rhododendron, salal, Oregon-grape, and northern twinflower.
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:
Umbric epipedon - 1 to 8 inches mixed (A and Bw horizons)
Lithic contact - 10 inches
Andic soil properties from 1 to 10 inches
PSCS - 1 to 10 inches (A and Bw horizon)
Udic soil moisture regime
All depth to diagnostic horizons and other features are measured from the top of the first mineral horizon.