Colonel Denning State Park

Colonel Denning State Park is a state park nestled in the Doubling Gap of Blue Mountain with a small lake surrounded by thick forests. The property spans about 110 acres and includes a network of trails that lead through wooded terrain and along the water.

The park was developed in the 1930s by the Civilian Conservation Corps and opened to the public in 1936. It is named after William Denning, a Revolutionary War veteran who worked with metalcraft near Carlisle.

The Civilian Conservation Corps constructed numerous facilities within the park during the Great Depression before its public opening in 1936.

The park provides about 52 camping spots with fire rings and picnic tables for overnight stays. Facilities are available during the main fishing and hunting seasons.

The Flat Rock Trail is known for its longer route that climbs to an overlook with views of the surrounding area. A shelter along the path was constructed by scouts as part of a service project.

Location: Lower Mifflin Township

Inception: 1936

Website: http://dcnr.state.pa.us/stateparks/parks/coloneldenning.aspx

GPS coordinates: 40.27330,-77.41640

Latest update: December 10, 2025 20:08