Why is the Michigan lake important.
I assume you mean Lake Michigan.
* It is one of the five Great Lakes.
* It is the only Great Lake that is entirely within the United States.
* It carries shipping from the Atlantic Ocean and other Great Lakes ports to Michigan, Wisconsin, Indiana, and Illinois.
* My mother lived in Chicago on the Lake Michigan shore.
For more information, check out this site.
http://en.wikipedia.org/wiki/Lake_Michigan