Great Lakes of the lakes: Ontario does not border Lake Michigan, and Michigan does not border Lake Ontario. New York and Wisconsin's jurisdictions extend into two lakes, and each of the remaining states into one of the lakes. As the surfaces of Lakes Superior, Huron, Michigan, and Erie are all approximately the same elevation above sea level, while Lake Ontario is significantly lower, and because the Niagara Escarpment precludes all natural navigation, the four upper lakes are commonly called the "upper great lakes". This designation, however, is not universal. Those living on the shore of Lake Superior often refer to all the
Largest shipwrecks on the Great Lakes known. The Great Lakes Shipwreck Museum estimates that about 6,000 shipwrecks lie beneath the surface of the lakes, while maritime historian Mark Thompson reckons that more than 25,000 shipwrecks are located in the waters of the Great Lakes. ! scope="col"|Ship ! scope="col"|In service ! scope="col"|Out of service ! scope="col"|Length (ft) ! scope="col"|Vessel type ! scope="col"|Launched ! scope="col"|Final disposition ! scope="col"|Notes ! scope="col"|Coordinates !scope="row"|"SS Leecliffe Hall !scope="row"|"SS Edmund Fitzgerald !scope="row"|"SS Carl D. Bradley !scope="row"|"SS Daniel J. Morrell !scope="row"|"SS William C Moreland !scope="row"|"SS Cedarville !scope="row"|"SS Chester A. Congdon !scope="row"|"SS D.R. Hanna !scope="row"|"SS James C. Carruthers !scope="row"|"SS Henry B. Smith !scope="row"|"SS Emperor !scope="row"|"SS