A lodge constructed in the style of an old army outpost is an excellent place for group gatherings such as reunions and wedding receptions. It is available for rent by reservation through the park manager.

An open shelter is available on a first-come, first-served basis at no fee.

Several trails take you around the park and through the hills and woodlands that make up Fort Defiance. Equestrian use is allowed on three of the trails. During winter months the park is a popular place for snowmobiling and cross country skiing.

Fort Defiance State Park's 191 acres of rugged woodland provide a beautiful contrast to the gently rolling surrounding farmlands. The park's trails, picnic areas and scenic overlooks provide a great place to relax. Its lush cover of vegetation includes hawthorn, plum, locust and many species of the state tree - the oak. In the spring, the slopes are speckled with trillium, bloodroot, hepatica and violets. A small prairie with native grasses and flowers, including the endangered prairie bush clover, thrives on a secluded knoll.