The St. Marys River, sometimes written St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74.5 miles southeast into Lake Huron, with a fall of 23 feet. For its en
St. Marys River connects Lake Superior (top left) to Lake Huron (bottom and right)
The International Bridge with the rail bridge crossing the American Locks.
Saint Marys Falls Hydropower Plant at the mouth of the Edison Sault Power Canal
US Army Corps of Engineers hydroelectric plant seen from across the St. Marys Rapids
Great Lakes Waterway
Videos
The Great Lakes Waterway is a system of natural channels and artificial locks and canals that enable navigation between the North American Great Lakes. Although all of the lakes are naturally connecte
St. Marys River (Michigan–Ontario)
…Lock". Today, there are four parallel locks on the American side of the river, although only two are in regular use. The Soo Locks became part of the Great Lakes Waterway system in 1959. Partially due to the American refusal of passage through the Soo Locks during the Wolseley Expedition, a Canadian Lock was built in…
The shipping channels pass on opposite sides of Neebish Island in the St Marys River