Elevation ranges from 700 to 1100 feet. These are the Jackson , Curran , and Tell soils. The moderately well drained Jackson soils and the somewhat poorly drained Curran soils form a drainage sequence with Bertrand soils. Tell soils are nearby on landscape positions similar to those of Bertrand soils where the silty mantle is 20 to 40 inches thick over sand. Runoff is slow to rapid.
Permeability is moderate in the silty and loamy alluvium and rapid in the sandy alluvium.
Most areas are used for cropland. Common crops are corn, small grain, and hay. Some areas are used for pastureland or woodland. Native vegetation is mixed hardwood forest. Common trees are northern red oak, white oak, black oak, white ash, black walnut, and quaking aspen.