Geertsen soils have an O horizon, an average annual soil temperature of 40 to 46 degrees F. and are dry for 30 to 45 days following the summer solstice. Libeg soils have an ustic soil moisture regime. Norriston soils have sand and gravel at depths less than 20 inches, have average annual soil temperatures greater than 40 degrees F., and have a lithologic discontinuity in the profile. Packer soils are less than 21 inches deep to the base of the argillic horizon. Sawfork soils have a depth to the base of the argillic horizon of 10 to 20 inches and have calcareous material at 5 to 25 inches.
Spanpeak soils have an O horizon and are dominated by schist or gneiss rock fragments.
Tahquats soils are slightly acid to strongly acid in the argillic horizon. Zeebar soils are on ridges, mountains, foothills, and fan remnants. Slopes are 4 to 70 percent. Elevations are 5,000 to 9,000 feet. The soils formed in slope alluvium weathered from quartzite, basalt, or tuff.