The Dinsdale, Mendota and Ogle soils have thinner sola and have carbonates within a depth of 40 inches. The Proctor and Waupecan soils formed in loess over loamy outwash. Waupecan soils contain coarse fragments and have carbonates in the control section. The Wiota soil formed in silty alluvium. The Muscotah, Reading, Rossville, and Wabash soils are on flood plains below Gymer soils.
Menoken soils are sandy and sit higher on the landscape.
Morrill soils are on similar landscapes as Oska soils. Sharpsburg and Wymore occur on terrace treads above the Gymer soils. Runoff is slow or medium. Permeability is moderately slow. Most of the acreage is cultivated.