Drino soils are on hillslopes and are 20 to 40 inches to bedrock. Fortyday soils are on ridges, are 14 to 20 inches to bedrock and have less than 25 percent clay in the argillic horizon. Prosser soils are on hillslopes and are moderately deep. Used for livestock grazing and wildlife habitat. Native vegetation is mainly Sandberg bluegrass, narrowleaf goldenweed, thyme eriogonum, and stiff sagebrush.
Series is of small extent.
Kittitas County, Washington, Yakima Training Center, 1994. Diagnostic horizons and features recognized in this pedon are an ochric epipedon from the surface to 2 inches, an argillic horizon from 2 to 8 inches and a lithic contact at 8 inches.