Sault Ste. Marie, Ontario, Canada, a city on the St. Marys River and the Canadian Soo Canal. It is linked by the International Bridge with Sault Ste. Marie, Michigan. Sault Ste. Marie is a commercial, industrial, and shipping center and one of Canada's major steel producers. Several railways, an airport, and the Trans-Canada Highway serve the city.
French explorers visited the site of Sault Ste. Marie as early as 1622. Settlement began when a fur-trading post was established here in 1783. The first canal lock was built in the 1790's. Sault Ste. Marie was incorporated as a town in 1887 and as a city in 1912.