Lake Superior could contain all the other Great Lakes plus three more lakes the size of Lake Erie.
Water flows into the lake from many small rivers and streams.
The Long Lac and Ogoki diversions in Canada channel water into Lake Superior that would otherwise flow into Hudson Bay. By order of the International Joint Commission, the lake's level, controlled by gates on the St. Marys River at Sault Ste. The Lake Superior drainage basin is rich in natural resources and scenic beauty. It is particularly known for its clear, cold water and agate beaches. A circle tour guides highway travelers around the lakeshore.