MLRA 114 and 139. The series is of moderate extent, about 20,256 acres. Wayne County, Ohio, 1981. Mechanicsburg soils were formerly mapped as Loudonville soils in some earlier surveys. Field investigations indicate that the upper contact of the underlying bedrock in some areas is fractured with more than 10 percent soil material between displaced rock fragments.
Roots extend considerable distance into such fractures.
A thin loess mantle is present in some areas. The following series were competing under the old classification. They may compete after they are updated to the 8th Edition of Keys to Soil Taxonomy. These are the Athol, Bolton, Bookwood, Brecknock, Cateache, Duffield, Hayter, Legore, Manassas, Morrison, Myersville, Neshaminy, Oatlands, Penorama, Penn, Ryder, Sudley, Washington, Westmoreland, and Wheeling. Athol, Bolton, Cateache, Manassas, Oatlands, Panorama, and Penn soils have Bt horizons with hue of 5YR or redder.