Lock Haven

City, seat (1839) of Clinton county, north-central Pennsylvania, U.S. It lies along the West Branch Susquehanna River (a major tributary of the Susquehanna), on the southern slope of Bald Eagle Mountain, 26 miles (42 km) southwest of Williamsport. Founded in 1834 by Jeremiah Church, a land speculator, it was laid out on the site of the frontier post, Fort Reed, and developed as a lumbering centre.