Great Lakes Great Lakes The Great Lakes (), also called the Laurentian Great Lakes and the Great Lakes of North America, are a series of interconnected freshwater lakes located primarily in the upper mid-east region of North America, on the Canada–United States border, which connect to the Atlantic Ocean through the Saint Lawrence River. They consist of Lakes Superior, Michigan, Huron, Erie, and Ontario, although hydrologically, there are four lakes, Superior, Erie, Ontario, and Michigan-Huron. The lakes are interconnected by the Great Lakes Waterway. The Great Lakes are the largest group of freshwater lakes on Earth by total area, and second largest
Great Lakes Megalopolis French geographer Jean Gottmann. Gottmann envisaged the development of other megalopolies in the U.S.: from Boston to Washington, D.C., from Chicago to Pittsburgh, and from San Francisco to San Diego. In 1965, futurist Herman Kahn speculated about the future of the three megalopoleis in the year 2000. In the 1960s and 1970s, urban planner and architect Constantinos Doxiadis authored books, studies, and reports regarding the growth potential of the "Great Lakes Megalopolis". Doxiadis envisioned Detroit (on the US-Canada border across from Windsor) as the central urban area in the Great Lakes Megalopolis. According to him, the megalopolis extended "from Milwaukee