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 to apply for additional federal research and education funds allocated to these national resources. Following a small uproar, the Senate voted to revoke the designation on March 24 (although New York and Vermont universities would continue to receive funds to monitor and study the lake). In the early years of the 21st century, water levels in the Great Lakes were a concern. Researchers at the Mowat Centre said that low levels could cost $19bn by 2050. Except when the water is frozen during winter, more than 100 lake freighters operate continuously on the Great Lakes, which remain a major water