Duffield, Neshaminy, Washington, Westmoreland, and Wheeling soils do not have mottles in the Bt horizon. Lamotte soils have higher chroma in the subsoil and substratum. Legore and Mechanicsburg soils have sola less than 36 inches thick. Myersville soils have rock fragments dominated by basic metamorphic rocks. Williamsburg soils have sola thicker than 60 inches and the lower part of the sola is clay loam or sandy clay loam.
Dormont soils are on hilltops and hillsides.
Slopes range from 0 to 50 percent. They formed in weathered nonacid shale and siltstone, with some thin beds of limestone. The climate is humid and temperate. These include the competing Culleoka and Westmoreland series in addition to the Brooke , Guernsey , and Library series. Brooke, Guernsey, and Library soils contains 35 percent or more clay.