Slope gradients range from 5 to 60 percent. These are the well drained Bold , Hamburg , Seaton , and Timula soils. Hamburg soils are on similar knobs on top of the bluffs or on steep hills along the side of the river valleys. Timula soils all have lower content of sand and higher content of silt in the control section and are on nearby upland landforms. The potential for surface water runoff is medium.
Permeability is rapid.
Most areas are used as pasture or woodland. Some of the less sloping areas are used to grow corn, small grain, and legume meadow. Native vegetation is thin stands of short prairie grasses, sandburs, and hardwood trees. Henderson County, Illinois, 1949.