LOCATION MULLIG WATentative Series
TAXONOMIC CLASS: Ashy, amorphic, frigid Humic Vitrixerands
TYPICAL PEDON: Mullig ashy sandy loam - forested on a 7 percent northeast facing foot slope at an elevation of 3,040 feet. (Colors are for dry soil unless otherwise noted. All textures are apparent field textures.)
Oi--0 to 1 inch; needles and twigs.
Oa--1 to 2 inches; decomposed organic material.
A1--2 to 8 inches; very dark grayish brown (10YR 3/2) ashy sandy loam, very dark brown (10YR 2/2) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; weakly smeary; many very fine and fine roots; common fine irregular and few fine tubular pores; 5 percent pebbles; moderately acid (pH 6.0); clear smooth boundary. (3 to 6 inches thick)
A2--8 to l6 inches; brown (7.5YR 4/2) ashy sandy loam, dark brown (7.5YR 3/2) moist; weak fine subangular blocky; soft, friable, nonsticky and nonplastic; weakly smeary; many very fine and fine, common medium and few coarse roots; common fine irregular and few fine tubular pores; l0 percent pebbles; slightly acid (pH 6.4); clear wavy boundary. (5 to 8 inches thick)
Bwl--l6 to 32 inches; brown (7.5YR 4/4) gravelly ashy loam, dark brown (7.5YR 3/2) moist; weak fine subangular blocky structure; soft, friable, nonsticky and nonplastic; weakly smeary; many very fine, common fine and medium, and few coarse roots; common fine irregular and few fine tubular pores; 20 percent pebbles; slightly acid (pH 6.4); clear wavy boundary. (8 to l8 inches thick)
Bw2--32 to 44 inches; yellowish brown (10YR 5/4) very stony ashy loam, dark yellowish brown (10YR 3/4) moist; weak fine subangular blocky structure; soft, friable, slightly sticky and nonplastic; weakly smeary; common very fine and few fine and medium roots; common fine irregular and few fine tubular pores; 30 percent pebbles, 5 percent cobbles and 20 percent stones; slightly acid (pH 6.2); clear wavy boundary. (l2 to 22 inches thick)
2Bw3--44 to 60 inches; yellowish brown (10YR 5/4) extremely stony loam, dark yellowish brown (10YR 3/4) moist; weak medium subangular blocky structure; soft, friable, slightly sticky and slightly plastic; common very fine and fine roots; common fine irregular and few fine tubular pores; 35 percent pebbles, 5 percent cobbles and 25 percent stones; neutral (pH 6.6).
TYPE LOCATION: Klickitat County, Washington; about 6 miles west of Glenwood; about l,000 feet south and 2,250 feet east of the northwest corner of sec. 11, T. 6 N., R. ll E.
RANGE IN CHARACTERISTICS: Mean annual soil temperature is 43 to 47 degrees F. The soil moisture control section is usually moist, but is dry in all parts for 60 to 75 consecutive days. The thickness of influence of amorphous material is 40 inches or more. Rock fragments average from 20 to 35 percent in the particle-size control section. In the lower part of and below the particle-size control section rock fragments range from 35 to 65 percent.
The A horizon has hue of 7.5YR or l0YR, value of 2 or 3 moist.
The Bwl horizon has hue of 7.5YR or l0YR, value of 4 or 5 dry, and chroma of 3 or 4 dry and 2 or 3 moist. It is loam, sandy loam, or gravelly loam. Reaction is medium acid or slightly acid.
The Bw2 and 2Bw3 horizons have hue of 7.5YR or l0YR, value of 5 or 6 dry, 3 or 4 moist and chroma of 3 or 4 dry and moist. It is very gravelly loam, very stony loam or extremely stony loam. The 2Bw3 horizon is not influenced by amorphous material. Reaction is slightly acid or neutral.
COMPETING SERIES: These are the Bercumb, Bunnell, Pileup and Timberhead series. Bercumb soils have less than 35 percent rock fragments throughout the control section. Bunnell and Timberhead soils are dry in all parts of the moisture control section for 45 to 60 consecutive days. Pileup soils have more than 35 percent saprolitic fragments in the lower part of the control section.
GEOGRAPHIC SETTING: Mullig soils are on mountains and plateaus at elevations of 2,800 to 3,800 feet. Slopes are 2 to 30 percent. The soil formed in volcanic ash and residuum and colluvium from basalt. Summers are cool and dry. Winters are cold and wet with snow cover from December through April. Average annual precipitation is 37 to 42 inches. Average January temperature is 22 degrees F.; average July temperature is 60 degrees F. Mean annual temperature is 42 to 45 degrees F. The frost-free season is 75 to 95 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alfir, Firoke and McCumber soils and competing Bercumb and Bunnell soils. Alfir soils are cryic and are medial-skeletal. Firoke soils are medial-skeletal. McCumber soils are ashy-skeletal.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability.
USE AND VEGETATION: Used mainly for timber production, grazable woodland, and wildlife habitat. Vegetation is ponderosa pine, grand fir and quaking aspen with an understory of western hazel, pinegrass, elk sedge and Idaho fescue.
DISTRIBUTION AND EXTENT: East slopes of the Cascade Mountains in Yakima and Klickitat Counties, Washington. The series is of small extent.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Yakima County, Washington, l976.
REMARKS: Classificaiton revised 3/99 with no other revision. Upper 44 inches of profile assumed to meet andic soil properties based on associated soils and lab data from Mountadams series; S90WA-077-002. All depths to diagnostic horizons and features are measured from the top of the first mineral horizon.
This series is very similar, if not the same, as the Glen series.