High Quality Content by WIKIPEDIA articles! M-62 is an arc-shaped state trunkline highway in the southwestern part of the US state of Michigan. The route runs from the Indiana state line north and west to M-140 in Eau Claire. In between, it serves the western Cass County communities of Dowagiac and Cassopolis. The highway was formed in the 1920s, originally as a north–south route. It was later extended, taking the current arc-shaped routing. A short truncation in the 1950s produced the current routing, which has remained unchanged since. In total, M-62 runs 28.29 miles (45.53 km) in the two counties.