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 Rise and Fall of the Great Lakes the rocks and the folds in the earth of farm landscapes viewed from the air. Toward the end of the film the canoeist seems finally to be safe from violent change. He dips his cup for a drink, but with his second sip discovers that the water has been fouled by human-produced industrial waste. "The Rise and Fall of the Great Lakes" was created by the NFB for the educational market, with the working title "Evolution of the Great Lakes". The film proved so popular with children and teachers in test screenings that it was blown up to 35 mm