Lake Superior islands include Madeline Island in the state of Wisconsin, Michipicoten Island in the province of Ontario, and Grand Island (the location of the Grand Island National Recreation Area) in the state of Michigan. The larger cities on Lake Superior include the twin ports of Duluth, Minnesota and Superior, Wisconsin; Thunder Bay, Ontario; Marquette, Michigan; and the twin cities of Sault Ste. Marie, Michigan, and Sault Ste. Marie, Ontario. Duluth-Superior, at the western end of Lake Superior, is the most inland point on the St. Lawrence Seaway and the most inland port in the world. Among the scenic places on the
Superior, Wisconsin by Saint Louis, Superior, and Allouez bays, the city is framed by two rivers: the Nemadji and the Saint Louis. Superior and the neighboring city across the bay, Duluth, Minnesota, form a single metropolitan area called the Twin Ports. They share a harbor that is one of the most important ports on the Great Lakes. Both cities feature museum ships ("SS William A. Irvin" in Duluth and "" in Superior) devoted to the local maritime heritage. Superior was the final port of call for the "Edmund Fitzgerald" before its sinking in 1975. The first-known inhabitants of what is now Douglas