Pymatuning State Park is a Pennsylvania state park covering 21122acre in Conneaut, North Shenango, Pine, Sadsbury, South Shenango, West Fallowfield and West Shenango Townships, Crawford County, Pennsylvania, in the United States. Pymatuning State Park is the largest state park in Pennsylvania and contains the 17088acre of Pymatuning Lake, three-quarters of which is in Pennsylvania and one-quarter of which is in Ohio. A three-mile (5 km) causeway extends between Pennsylvania and Ohio near the center of the lake. The lake provides fishing and boating year round. There are two natural areas, Clark Island (161acre) and Blackjack (725acre) in the park. The park is also home to the University of Pittsburgh's Pymatuning Laboratory of Ecology. Like all Pennsylvania state parks, admission to the Pymatuning State Park is free. The northern access for Pymatuning State Park can be reached from U.S. Route 6 and the southern access is reached from U.S. Route 322.
