Great Lakes Waterway upbound direction is away from the St. Lawrence River (westerly or northerly except in Lake Michigan where upbound is southerly). Channels are marked with navigation buoys in constricted areas and pilots are required on foreign boats. Recreational boats can use or cross the ship channels, but the large boats, with limited maneuverability, have right of way. Map of the North American Great Lakes and the St. Lawrence Seaway from 1959, depicting the entire length beginning at the Gulf of Saint Lawrence in the east to the western-most terminus at Lake Superior. Great Lakes Waterway The Great Lakes Waterway is a
Great Lakes Megalopolis Great Lakes Megalopolis The Great Lakes Megalopolis consists of the group of metropolitan areas in North America largely in the Great Lakes region and along the Saint Lawrence Seaway. To its south and west, it lies in the Midwestern United States, extending east into western Pennsylvania and Upstate New York, as well as north to Southern Ontario and the southern part of Quebec in Canada. It is the largest and most populated megalopolis in North America. At its most inclusive, the region cuts a wide swath from the Twin Cities in Minnesota to Pittsburgh, Pennsylvania and Rochester, New York. On