Michigan State Highway 103
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Michigan State Highway 103, or M-103, is a very short highway, all undivided surface road, entirely within St. Joseph County in southwestern Michigan, between Mottville, Michigan, junction US 12 to the Indiana state line, where it feeds to and from Indiana State Highway 15, toward Bristol, Indiana. With Indiana 15 it gives access to the Indiana Toll Road.
M-103 takes a north-east-southwest course near the St. Joseph River.