Guyandotte soils formed from colluvium weathered from sandstone, siltstone, and shale, and contain fragments of those rocks. Nordby soils have 2C horizons of extremely gravelly sand within a depth of 40 inches. Klickitat soils are deep to bedrock, formed in colluium weathered from basalt, and contain basalt fragments. Skoly and Steever soils formed in colluvium weathered from basalt and andesite, and contain fragments of those rocks. Spivey soils are in long, narrow shaped areas in hollows and coves in the mountains.
Some areas are on the lower parts of steep mountain sides.
Slopes range from 8 to 95 percent. The soil formed in colluvium and local alluvium moved downslope from soils underlain by arkose, arkosic sandstone, metasandstone, metagrayqacke, graywacke, slate and phyllite. Mean annual temperature ranges from about 50 degrees to 57 degrees F. and mean annual precipitation ranges from about 45 to 50 inches. These include Brasstown , Brookshire , Cataska , Cheoah , Citico , Jeffrey , Junaluska , Maymead , Santeetlah , Soco , and Stecoah soils. None of these soils are in a loamy-skeletal family.