One of the five Great Lakes of North America
and the only one located entirely within the United States.
Because Lake Michigan is joined to Lake Huron at the Straits of Mackinac, they are considered one lake hydrologically.
The northern part of the Lake Michigan watershed is covered with forests, sparsely populated, and economically
dependent on natural resources and tourism, while the southern portion is heavily populated with intensive industrial
development and rich agricultural areas along the shore.