It is very strongly or strongly acid. It has 2 to 10 percent organic matter with less than 7 percent below 20 inches. It has 0 to 75 percent paragravels increasing with depth. The 2Bsm horizon is weakly or moderately cemented by iron, aluminum and manganese. These are the Elwell , Oyhut and Hoko series.
Elwell soils are frigid.
Hoko soils are medial-skeletal. Oyhut soils have hard rock fragments. These soils are on till plains, mountain sides and mountain valleys at elevations of 30 to 800 feet. Slopes are 1 to 65 percent. They formed in alpine glacial till that include local Olympic basalt, graywacke, shales, and argillite.