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 was the first president. The company began full operation on the Great Lakes (except Lake Ontario and the St. Lawrence River) in 1900, starting its first navigating season with over 150 tugboats. The Company grew rapidly, so much so that in 1913 it was charged with operating a monopoly. Frequent labor unrest during World War II resulted in the U.S. government assuming control of the Company in 1945-46. During the 1950s and 1960s the company installed innovative communication equipment. Business began to decline in the 1960s when the decline of the steel industry and the introduction of new types of