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
The Great Lakes Group The Great Lakes Group The Great Lakes Group (GLG) is an American full-service marine-related transportation company headquartered in Cleveland, Ohio. The Great Lakes Group is the parent Company to The Great Lakes Towing Company, Great Lakes Shipyard, Tugz International L.L.C., Puerto Rico Towing & Barge Co., Soo Linehandling Services, Admiral Towing and Barge Company, and Wind Logistics, Inc. The Great Lakes Towing Company was the first company of The Great Lakes Group, founded in New Jersey on July 7, 1899. Its founding shareholders included Jeptha H. Wade II, John D. Rockefeller, William G. Mather, and James R. Sinclair. T.F. Newman