Great Lakes Megalopolis the Chicago-Rochester corridor, starting at the Detroit River but continuing east beyond Lake Ontario along the St. Lawrence Seaway to Quebec City and the Gulf of St. Lawrence. Several corridors have interstate highways but no comprehensive passenger rail service. These highway routes pass through both core and fringe areas of the Great Lakes megalopolis. The upper Great lakes region has a marine corridor that connects Lakes Superior, Huron, and Michigan. However, this route does not include parallel Amtrak passenger rail or interstate highway service. I-70 follows the southern fringe of the megaregion. It runs from Kansas City MO to just
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