Mayberry soils have hue redder than 10YR in the middle part of the series control section. Ipava soils are on nearly level to gently sloping broad summits on uplands. Slope gradients typically are between 1 and 3 percent and range from 0 to 5 percent. Ipava soils formed in loess. These are the Clarksdale , Denny , Osco , Sable , Tama , and Virden soils.
Clarksdale soils are on similar landscapes nearby, but are typically nearer the drainageways.
The poorly drained Denny soils have albic horizons and are in depressional areas. The well drained Osco and Tama soils contain less clay in the subsoil and are more sloping or are on narrower ridges in areas with greater relief. The poorly drained Sable soils contain less clay in the subsoil and are nearby on the parts of the inter-stream divides with lowest relief. The poorly drained Virden soils typically are nearby on the parts of the inter-stream divides with lowest relief. Somewhat poorly drained.