A ship navigates the Soo Locks between Lake Superior and Lake Huron on the St. Mary's River on United States (Michigan) and Canadian border. Image courtesy of the U.S. Army Corps of Engineers - Detroit District.
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A ship navigates the Soo Locks between Lake Superior and Lake Huron on the St. Mary's River on United States (Michigan) and Canadian border. Image courtesy of the U.S. Army Corps of Engineers - Detroit District.
