Almac and Chiwaukum soils have a xeric moisture regime and MAST greater than 37 degrees F. Foss soils have a MAST greater than 37 degrees F. Pinkham soils are very stony in the upper part of the particle-size control section. The Estelle soils are on glacial till plains and hillslopes. Slopes range from 0 to 65 percent. The soils formed in a loess mantle dominated by amorphous material. The loess mantle is underlain by friable to firm, gravelly glacial till material.
Climate is transitional maritime - continental.
Mean annual temperature is about 35 degrees F. Mean annual precipitation ranges is about 18 inches. Medium to rapid runoff. Moderate permeability in the loess mantle, moderately slow below. Wildlife habitat, agriculture and urban uses. Native vegetation includes paper birch, white spruce, quaking aspen, bluejoint grass and low shrubs.