LOCATION DOSEWALLIPS WAEstablished Series
TAXONOMIC CLASS: Medial-skeletal, ferrihydritic, mesic Lithic Hapludands
TYPICAL PEDON: Dosewallips extremely cobbly medial sandy loam - forestland, on an 86 percent south-facing slope at an elevation of 1,620 feet in a western hemlock/Oregongrape plant association. (When described on March 27, 1991 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 leaves, needles, and twigs; clear smooth boundary. (1 to 3 inches thick)
A--1 to 5 inches; dark yellowish brown (10YR 3/4) extremely cobbly medial sandy loam, yellowish brown (10YR 5/6) dry; weak very fine and fine granular and weak very fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine and common fine, medium, and coarse roots; common very fine and fine irregular pores; 30 percent gravel, 40 percent cobbles; strongly acid (pH 5.2); clear wavy boundary. (1 to 4 inches thick)
Bw--5 to 12 inches; strong brown (7.5YR 4/6) extremely cobbly medial sandy loam, brownish yellow (10YR 6/6) dry; weak very fine subangular blocky and weak very fine and fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; common very fine, fine, medium, and coarse roots; common very fine and fine irregular pores; 35 percent gravel, 45 percent cobbles; strongly acid (pH 5.1); abrupt wavy boundary. (3 to 16 inches thick)
R--12 inches; hard marine basalt.
TYPE LOCATION: Mason County, Washington; about 3.5 miles north-northwest of Dry Bed Lakes about 1,190 feet west and 2,245 feet south of the northeast corner of section 26, T. 22 N., R. 6 W. (Latitude 47 degrees, 22 minutes, 03 seconds N., Longitude 123 degrees, 24 minutes, 04 seconds W.)
RANGE IN CHARACTERISTICS: Mean annual soil temperature at the lithic contact is 47 to 51 degrees F. These soils are usually moist in the soil moisture control section and are dry 30 to 45 consecutive days during summer; udic moisture regime. Depth to bedrock is 10 to 20 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 is 85 to 100 percent, 15-bar water retention of 12 to 20 percent for air dried samples, and 60 to 90 percent rock fragments by volume. Acid oxalate extractable iron is 1.5 to 3.0 percent. It has 1 to 2 cmol/kg of aluminum.
The A horizon has hue of 10YR or 7.5YR and chroma of 2 through 4 moist and 3, 4, or 6 dry. It has 5 to 10 percent organic matter.
The Bw horizon has hue of 7.5YR or 10YR, chroma of 3 or 4 moist and 5 or 6 dry, and chroma of 4 or 6 moist or dry. It is extremely cobbly medial sandy loam, extremely gravelly medial sandy loam, or extremely cobbly medial loam. Reaction is moderately or strongly acid. It has 1 to 5 percent organic matter.
COMPETING SERIES: These are the similar Northpoint, Romanose, Station, Waketickeh and Walkinshaw series. All of these series have a frigid temperature regime.
GEOGRAPHIC SETTING: Dosewallips soils are on mid-slopes of mountains. Slopes are 60 to 100 percent. The soils formed in colluvium from marine basalt and associated volcanic rocks. Elevations are 500 to 1,900 feet. Average annual precipitation is 70 to 150 inches. Average annual temperature is 45 to 49 degrees F. Frost-free season is 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Fircreek, Govey, and Lenacreek soils. Fircreek and Govey soils are on glaciated mountain slopes and glacial valleys and are moderately deep to a cemented layer. Lenacreek soils are on mountain slopes and are moderately deep to bedrock.
DRAINAGE AND PERMEABILITY: Well drained; moderately rapid permeability.
USE AND VEGETATION: Wildlife habitat, recreation, and watershed. Native vegetation is Douglas-fir, western hemlock, western swordfern, salal, Oregon-grape, red huckleberry, and common beargrass.
DISTRIBUTION AND EXTENT: Olympic Mountains, Grays Harbor, Mason and Jefferson Counties, Washington; MLRA 1. Series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Mason County, Washington, 2000; Olympic National Forest.
REMARKS: Diagnostic horizons and features recognized in this pedon are an ochric epipedon, a cambic horizon from 5 to 12 inches, andic soil properties from the mineral soil surface to 12 inches, and a lithic contact at 12 inches.
All depths to diagnostic horizons or other features are measured from the top of the first mineral horizon.