Martinsville soils are stratified with textures that have more than 45 percent sand in the lower part of the series control section. Senachwine and Wawaka soils have a calcium carbonate equivalent of more than 22 percent in the lower part of the series control section. Strawn soils are less than 25 inches to the base of the argillic horizon. Amanda soils are on Wisconsinan age end moraines and ground moraines. They formed in loamy till.
Some areas have a thin mantle of loess.
Slope ranges from 2 to 70 percent. Elevation ranges from 900 to 1,200 feet. The frost-free period is 145 to 155 days. These are the competing Chili soils and the Bennington , Bogart , Centerburg , Condit , Jimtown , Loudonville , Mechanicsburg , and Pewamo soils. The moderately well drained Centerburg soils, somewhat poorly drained Bennington soils, very poorly drained Condit soils, and very poorly drained Pewamo soils are in a toposequence with Amanda soils.