Jefferson soils have siliceous mineralogy. Rigley soils have less than 18 percent clay in the B horizons. Pope and Stendal soils are on flood plains and lack argillic horizons. Whitley soils have more silt and less sand. Well drained, with slow to medium runoff and moderate permeability.
Major crops are corn, tobacco, small grains, hay, vegetables, and fruit.
Native vegetation is mostly hardwoods such as oaks, hickory, yellow-poplar, maples, elm, beech, white pine, and hemlock. The Eastern Mountains, Bluegrass, and Knobs Regions of Kentucky and similar areas in Pennsylvania, Maryland, Virginia, West Virginia, and Ohio, possibly Arkansas, Missouri, and Tennessee. Extent is moderate. Fayette County, Pennsylvania, 1948. The Allegheny series has been correlated in Johnson County, Kentucky, and the Typical pedon has been relocated.