Cottle soils are noncalcareous throughout the control section and contain 12 to 18 percent clay. Fortyday soils do not contain Btk horizon and are not dominated by channers. Nevo soils contain 25 to 33 percent clay in the particle size control section, and lithic contact range from 5 to 12 inches. Old Camp soils also have a noneffervescent matrix. Stewval soils also receive appreciable amounts of summer precipitation.
Phliss soils are on crests and side slopes of mountains and foothills.
These soils formed in residuum and colluvium from phyllite, slate and schist with minor amounts of quartzite. Slopes are 15 to 75 percent. Elevations are 4,300 to 7,500 feet. The climate is cool, semi arid with cool, moist winters and warm, dry summers. Cleavage and Majuba soils have mollic epipedons.