Caneek soils lack mollic epipedons and are calcareous. Colo and Otter soils have thicker mollic epipedons. Richwood and Rowley soils are on higher-lying areas on stream terraces and are better drained. Permeability is moderate. Surface runoff is slow.
Ossian soils are subject to flooding.
Most areas are used for cultivated crops if tile drained. Principal crops are corn, soybeans, oats, and meadow. Some areas are used for permanent pasture. Native vegetation was grasses tolerant to excess wetness. They are of moderate extent.