According to your "understanding" of it.
Since you have no understanding of boundaries, lines and demarkations of Michigan - I would suggest you start here.
http://www.mapquest.com/maps/map.adp?searchtype=address&country=US&addtohistory=&searchtab=home&formtype=address&popflag=0&latlongtype=&latitude=&longitude=&name=&phone=&level=&cat=&address=&city=&state=MI&zipcode=