BY LAKE Click on the different lakes to view specific information.
Lake Superior is the least polluted of the five lakes.
Drainage basin rich in natural resources and scenic beauty. Sparsely populated and economically dependent on natural resources, including metals, forest and recreational opportunities. Seven Areas of Concern, including Thunder Bay, Nipigon, Jackfish and Peninsula Harbour on the Canadian side. Northern part is in the colder, less developed upper Great Lakes region, sparsely populated and economically dependent on natural resources and tourism. Southern end supports a large industrial region.