Lake Superior other Great Lakes fish, populations have also been affected by the accidental or intentional introduction of foreign species such as the sea lamprey and Eurasian ruffe. Accidental introductions have occurred in part by the removal of natural barriers to navigation between the Great Lakes. Overfishing has also been a factor in the decline of fish populations. Lake Superior Lake Superior (; ), the largest of the Great Lakes of North America, is also the world's largest freshwater lake by surface area, and the third largest freshwater lake by volume. The lake is shared by the Canadian province of Ontario to
Lake Wallenpaupack Lake Wallenpaupack Lake Wallenpaupack is a freshwater lake in northeastern Pennsylvania. It is the third largest lake in Pennsylvania measuring 52 miles of shoreline, 13 miles in length, 60 feet deep at points, and has a surface area in excess of 5,700 acres (23 km). It was created in 1926 by the Pennsylvania Power & Light Company (PP&L) for hydroelectric purposes as well as flood control; however, it is best known as one of several major recreational destinations in the Pocono Mountains. It is located near the Borough of Hawley, and forms part of the boundary between Pike and Wayne