The Cr horizon is soft red to reddish brown siltstone which is interbedded with sandstone in some areas. The Nash ville series is the only series in its family. Competing series in other families are the Canadian , Crisfield , Grant , Lucien , Minco , Nash, Pond Creek , Quinlan , and Woodward series. Canadian, Crisfield, Grant, Minco, and Pond Creek soils lack shale within depths of 40 inches. Lucian and Quinlan soils have bedrock at depths of less than 20 inches.
Nash soils are coarse-silty.
Woodward soils have a calcareous control section and lack a mollic epipedon. Nashville soils are on nearly level to sloping erosional uplands. Slope gradients typically average between 1 and 5 percent but range from 0 to 12 percent. The soil is formed in residuum from siltstone. Mean annual precipitation ranges from 25 to 35 inches, and mean annual temperature ranges from 57 to 62 degrees F. Thornthwaite Annual P-E Index ranges from 44 to 60.