A 3BC horizon, where present, has hue of 10YR or 7.5YR, value of 3 or 4, and chroma of 3 or 4. Arcola, Bookwood, Brecknock, Cateache, Culleoke, Dumfries, Frondorf, Kell, Legore, Loudonville, Mechanicsburg, Myersville, Oatlands, Penn, Ryder, Spriggs, and Westmoreland soils have the depth to the base of the argillic horizon at less than 40 inches. Door and Wheeling soils average more than 20 percent sand in the lower part of the series control section. Lamotte and Williamsburg soils have a sola more than 60 inches thick. Duffield and Hayter soils contain less than 42 percent clay in the lower part of the Bt horizon.
Neshaminy soils contain rock fragments of diabase.
Grayford soils are typically on shoulders and backslopes of dissected till plains and sinkholes. Grayford soils formed in 6 to 22 inches of loess, and the underlying glacial till of Illinoian age, and residuum from limestone. The slope gradient is dominantly 6 to 25 percent, and ranges from 2 to 35 percent. Mean annual temperature ranges from 52 to 57 degrees F, and mean annual precipitation ranges from 40 to 46 inches. These are the Caneyville , Cincinnati , Hickory , Ryker , and Stinesville soils.