Spanning 17,088 acres across the Pennsylvania-Ohio border, Pymatuning Reservoir stands as one of the largest man-made lakes in either state. Created in 1934 by damming the Shenango River, this hook-shaped body of water stretches 17 miles with 70 miles of shoreline. Originally a vast wetland area, Pymatuning now serves multiple purposes including flood control, water supply for the Shenango and Beaver valleys, and recreation. The reservoir is primarily managed through two state parks - one in Pennsylvania (covering about 80% of the lake) and one in Ohio. With its diverse underwater habitats, clear waters, and thriving ecosystems, Pymatuning has earned a reputation as one of the finest warm water fisheries in the region, attracting anglers seeking everything from trophy muskellunge to abundant panfish.