The St. Marys River (sometimes spelled as the St. Mary's River) drains Lake Superior, starting at the end of Whitefish Bay and flowing 120 km southeast into Lake Huron. For its entire length it is an international border, separating Michigan in the United States from Ontario, Canada. I never heard of a cat caught there but theres an awesome salmon run, huge sturgeon run, and some great fly fishing during the steelhead season as well. Good luck!!!! Sal
