Clinton soils have a thinner E horizon and higher clay content in the Bt horizon. Coppock and Vesser soils are on similar landscape positions but have a grayer B horizon. Vesser soils also have mollic epipedons. Lindley soils are on side slopes upslope and have more sand and coarse fragments in the Bt horizon. Well or moderately well drained.
Surface runoff is medium.
Permeability is moderate. Commonly cropped to corn, soybeans, small grain, and legume hays. South central and southeastern Iowa and possibly northeastern Missouri. Martinsburg soils are of small extent. Keokuk County, Iowa, 1974.