It's a city... :-P
Not much as far as mountains down here... the U.P. and northern parts of the L.P. get pretty hilly, though.
The highest point in Michigan is 1,979 ft. above sea level (Mt. Arvon). The lowest point is around 500 ft. above sea level, so there's only 1,500 ft. of variance.
Regards,
-scott anderson
"Welcome to Rivendell, Mr. Anderson..."