The Miamian series consists of very deep, well drained soils that are moderately deep to dense till on Wisconsinan age till plains and moraines. These soils formed in a thin layer of loess up to 18 inches thick and loamy calcareous till.
Permeability is moderately slow in the solum and slow or very slow in the substratum.
Slope ranges from 0 to 50 percent. 39 degrees 52 minutes 45 seconds N., and long. 84 degrees 16 minutes 04 seconds W., NAD 27. The depth to the base of the argillic ranges from 20 to 40 inches. Depth to carbonates ranges from 18 to 40 inches.