Color value is 5 or less dry, and 3 or less, moist, in at least half of the upper 12 to 15 inches. Auld and Ayar soils have a paralithic contact at depths of more than 40 inches. Cibo soils have a lithic contact at depths of 20 to 40 inches. Hollenbeck soils have combined thicknesses of the A and B horizons of 40 to 60 inches. Seville soils have a strongly cemented lime-silica pan at depths of less than 40 inches.
Asbill soils are on hills.
Slopes are 5 to 50 percent. The soils formed in material weathered dominantly from shale and siltstone. Elevations are 1,350 to 2,100 feet. The climate is subhumid with warm, dry summers and cool, moist winters. The average annual precipitation is 25 to 40 inches.