Human habitation in the Great Lakes region began as glaciers retreated 10,000 years ago and left behind the world’s largest freshwater system. It has been home to Native people for time immemorial and is the current home to 34 million people in the United States and Canada. Great Lakes waters hold , sustain life and more. Learn more about this ecological community and what makes it one of the greatest systems in the world.

Test your knowledge.

• How well do you know the Great Lakes?

Want to learn more?

• Get to know the Great Lakes
• Fast Facts about the Greats
• Meet some Wisconsin Great Lakes Champions

Want more books about the Great Lakes? We have lists!

• Bibliography of the Great Lakes
• Bibliography of the Great Lakes for children
• Bibliography of the Wisconsin Great Lakes