40 degrees 37 minutes 16 seconds N. and long. 84 degrees 55 minutes 24 seconds W., NAD 27. The depth to the base of the argillic horizon and depth to free calcium carbonate is 20 to 40 inches. Loess thickness ranges from 0 to 18 inches. It is silt loam, loam, silty clay loam, or clay loam.
Reaction is strongly acid to neutral.
It is commonly clay loam or clay, and less commonly silty clay loam or silty clay. It averages from 35 to 50 percent clay and from 15 to 25 percent sand. Reaction is very strongly acid to slightly alkaline. Rock fragment content is 1 to 10 percent. Calcium carbonate equivalent ranges from 20 to 30 percent, and bulk density ranges from 1.7 to 1.9.