The southern terminus of the route is at PA 75 in Claylick. The northern terminus is at U.S. Route 30 (US 30) west of Chambersburg. The road carries the names Welsh Run Road, Lemar Road, and Warm Spring Road.
The southern endpoint of the route is at PA 75 in Claylick. The northern endpoint is at U.S. Route 30 (US 30) west of Chambersburg. The road bears the names Welsh Run Road, Lemar Road, and Warm Spring Road.