The Soo Locks at Sault Sainte Marie, Michigan
There are five locks that connect Lake Superior to Lake Huron through the St. Marys River, four on the U.S. side; MacArthur Lock (1943), Poe Lock (1969), Davis Lock (1914), and Sabin Lock (1919) and one Canadian lock.

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Photo by: Kokosing, Alberici, Traylor |  VIRIN: 230602-A-A1424-1068.JPG
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