Lake Superior is the largest of the Great Lakes of North America, and among freshwater lakes, it is the world's largest by surface area and the third-largest by volume. It is shared by Ontario, Canada to the north, and states in the United States in other directions: Minnesota to the west, and Wisconsin and the Upper Peninsula of Michigan to the south. Lake Superior is the most northerly and most westerly of the Great Lakes chain, and the highest in elevation. It drains into Lake Huron via St. Mary's River.
