苏圣玛丽运河 位于加拿大安大略省苏圣玛丽，是一处加拿大国家历史遗址。运河始建于1798年，百余年来是连接苏必利尔湖和休伦湖的航道，运河上有船闸等设施，让船只可以避开出苏必利尔湖天然河道的瀑布急流。直到1987年通航任务转移至美国境内的南运河，而此运河则主要作为景点供游船使用。
Whitefish Island is an island in the St. Marys River, just south of Sault Ste.
The Sault Canal Emergency Swing Dam is an all-metal structure built by the Dominion Bridge Company in 1896.
The Gros Cap Reefs Light is a lighthouse located at the entrance to St. Mary's River from Whitefish Bay of Lake Superior.
