Tranquility Wildlife Area is located in southwest Ohio, 16 miles south of Hillsboro on State Route 770. County Road 100 (Old State Route 32) runs along the southern boundary of the area. The terrain is typical of the unglaciated hill region of Ohio. About 40 percent of the wildlife area consists of native woodlands. Oak and hickory dominate the dry ridges and upper slopes. Maple, beech, elm, and ash are most common on the lower slopes and along the streams. Mixed brush with dense stands of red cedar make up about 40 percent of the area. The remaining 20 percent consists of grassland and cultivated fields. This area lies in a glacial transition zone. Since trees and non-woody plants of both glacial and non-glacial soils are present, the area is of interest to both amateur and professional naturalists. Of great beauty in the spring are the flowering dogwood and redbud, which are found in vast numbers. In the fall, a mixture of brightly colored hardwoods provides striking contrast to the green conifers, principally red cedar. Native grasses are found on this area.