LOCATION LIZARDLAKE WAEstablished Series
TAXONOMIC CLASS: Medial-skeletal, ferrihydritic, isofrigid Lithic Fulvudands
TYPICAL PEDON: Lizardlake extremely gravelly medial sandy loam-forestland, on a 65 percent southwesterly aspect at an elevation of 1,750 feet in a Pacific silver fir/salal plant association. (When described on February 3, 1994, the soil was moist throughout. Colors are for moist soil unless otherwise stated.)
Oi--0 to 2 inches; slightly decomposed needles, leaves, and wood fragments; abrupt smooth boundary. (1 to 4 inches thick)
Oe--2 to 4 inches; moderately decomposed organic materials; abrupt smooth boundary. (0.5 to 2.5 inches thick)
A--4 to 8 inches; dark brown (7.5YR 4/4) extremely gravelly medial sandy loam, strong brown (7.5YR 5/6) dry; weak very fine, fine, and medium subangular blocky and weak very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; weakly smeary; common very fine, fine, medium, and coarse roots; common very fine and fine irregular pores; 55 percent gravel, 10 percent cobbles; strongly acid (pH 5.4); clear smooth boundary. (3 to 6 inches thick)
Bw--8 to 16 inches; strong brown (7.5YR 4/6) extremely gravelly medial sandy loam, reddish yellow (7.5YR 6/8) dry; weak very fine, fine, and medium subangular blocky and weak very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; weakly smeary, common 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); abrupt wavy boundary. (7 to 14 inches thick)
R--16 inches; hard metavolcanic rock.
TYPE LOCATION: Clallam County, Washington, about 1/2 mile east of Ellis Mountain, about 1,190 feet west and 1,410 feet south of the northwest corner of Section 30, T. 31 N., R. 12 W. (Latitude 48 degrees, 09 minutes, 33 seconds N., Longitude 124 degrees, 18 minutes, 01 seconds W.)
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 43 to 47 degrees F. The difference between the mean summer and mean winter soil temperature is 5 to 9 degrees F. The mean summer soil temperature is 47 to 50 degrees F. Mean winter is 40 to 45 degrees F. These soils are usually moist, and are dry 0 to 30 consecutive days in the soil moisture control section; udic moisture regime. Depth to bedrock is 10 to 20 inches. The solum has andic soil properties with 60 to 90 percent rock fragments by volume. The andic soil material has an estimated moist bulk density of 0.30 to 0.70 g/cc, acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron of 2 to 6 percent, phosphate retention of 85 to 100 percent, and 15-bar water retention of 30 to 50 percent for air dried samples. Acid oxalate iron is 1.5 to 3.5 percent. The solum has 2 to 8 cmol/kg of aluminum.
The A horizon has hue of 7.5YR or 10YR moist and dry, value of 3 or 4 moist, and chroma of 4 or 6 dry. Reaction is very strongly to moderately acid. It has 20 to 40 percent organic matter.
The Bw horizon has hue of 7.5YR or 10YR moist and dry, value of 3 or 4 moist, and chroma of 4 or 6 moist and 4, 6, or 8 dry. It is extremely gravelly medial sandy loam, extremely cobbly medial sandy loam, or extremely medial gravelly loam. It has 10 to 25 percent organic matter.
COMPETING SERIES: This is the Eatoncreek and similar Dimal series. Eatoncreek soils have an umbric epipedon and are perudic. Dimal soils have mixed mineralogy and are over sedimentary bedrock.
GEOGRAPHIC SETTING: Lizardlake soils are on glaciated mountain slopes. Slopes are 40 to 80 percent. The soils formed in colluvium and residuum from hard marine basalt and associated volcanic rocks. Elevations are 800 to 2,400 feet. Average annual precipitation is 95 to 120 inches. Average annual temperature is 41 to 43 degrees F. The frost-free season is 120 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Adwell, Eatoncreek, Pysht, Kaweeta, Neah, Urboden, and Zenobia soils. Adwell and Pysht soils are on glaciated mountain slopes and are moderately well drained. Eatoncreek soils are on glaciated mountain slopes and have an umbric epipedon. Kaweeta and Zenobia soils are on glaciated mountain slopes and are moderately deep. Neah soils are on moderate relief mountain slopes and are moderately deep. Urboden soils are on mountain headwalls and are very deep.
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, western redcedar, Pacific yew, salal, northern twinflower, red huckleberry, Oregon-grape, deer fern, mosses, starflower, and violet.
DISTRIBUTION AND EXTENT: Clallam County, Washington; MLRA 1. 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 - 8 to 16 inches (Bw horizon)
Andic soil properties - 4 to 16 inches (A and Bw horizons)
Lithic contact - 16 inches
PSCS - 4 to 16 inches (A and Bw horizons)
All depths to diagnostic horizons and features are measured from the top of the first mineral horizon.