Lake Michigan is the only Great Lake that lies completely within the United States.
The United States and Canada each have boundaries on the other four Great Lakes: Superior, Huron, Erie, and Ontario.
The province of Ontario Is the only province to touch all four of the Great Lakes that border Canada.
The Saint Lawrence River is the main outlet of these interconnected lakes, and flows through Quebec and past the Gaspé Peninsula to the northern Atlantic Ocean.
The Great Lakes contain roughly 22% of the world’s fresh surface water, but they supply only a small portion of America’s drinking water.
The Great Lakes are used to transport bulk goods, which include iron ore, grain, and potash.