Canada and the United States are separated at this entry point by the St. Mary's River.

Canada and the United States are separated at this entry point by the St. Mary's River. The similarly named cities of Sault Ste. Marie, Michigan is to the south and Sault Ste. Marie, Ontario is to the north (in this orientation they are from left to right). The St. Mary's River leads into Lake Superior heading west and Lake Huron heading south.