Water Is Like Nothing Else - Geography

Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario, form the Great Lakes, straddling the United States and Canada to make up the largest group of freshwater lakes in the world. Collectively they contain 5,439 cubic miles of water (22,670 cubic km), or about 20% of all the earth’s fresh water, and cover an area of 94,250 square miles (244,106 square km).

Several other minor lakes and rivers are also included in the Great Lakes region including the Niagra River, Detroit River, St. Lawrence River, St. Marys River, and the Georgian Bay. There are 35,000 islands estimated to be located on the Great Lakes, created by years of glacial activity.

Interestingly, Lake Michigan and Lake Huron are connected by the Straits of Mackinac, and can be technically considered a single lake.


Resources

About the Great Lakes

Introduction to the Great Lakes

Regional GIS Data