A man-made lake spanning Pennsylvania and New York, the Allegheny Reservoir is located along the Allegheny River at the Kinzua Dam. The reservoir is surrounded by the Allegheny National Forest in Pennsylvania and Allegany State Park and the Seneca Nation's Allegany Reservation in New York. Known to offer some of the best fishing opportunities in the eastern United States, the reservoir is great for muskie and walleye. All personal watercraft operators and passengers must wear a life jacket.