M-97 is a state trunkline highway in the U.S. state of Michigan. It runs from Detroit to north of Mt. Clemens following Groesbeck Highway. The highway starts south of 7 Mile Road and runs northeasterly through Macomb County suburbs to Hall Road, which takes the place of 20 Mile Road in the Mile Road System. In between the termini, Groesbeck Highway runs through suburban residential and commercial areas.