M-18 (Michigan highway)

M-18
M-18 highlighted in red
Route information
Maintained by MDOT
Length:	77.530 mi (124.772 km)
Existed:	c. July 1, 1919 – present
Major junctions
South end:	US 10 near North Bradley
	M-61 at Gladwin M-55 at Prudenville I-75 near Roscommon
North end:	M-72 / F-97 near Luzerne
Location
Counties:	Midland, Gladwin, Clare, Roscommon, Crawford
Highway system
Michigan State Trunkline Highway System Interstate US State Byways ← M-17 M-19 → ← M-144 M-144 M-146 →

M-61 at Gladwin
M-55 at Prudenville

M-18 is a north–south state trunkline highway in the Lower Peninsula of the US state of Michigan. It runs for 77.530 miles (124.772 km) through the central region of the state connecting US Highway 10 (US 10) near North Bradley with M-72 in rural Crawford County near the community of Luzerne. In between, the roadway connects several smaller communities while running through woodlands in both state and national forest areas. Two segments of M-18 run along sections of county boundaries, and one part of the highway forms a component of the business loop for the village of Roscommon.