M-73 (Michigan highway)

M-73
M-73 highlighted in red
Route information
Maintained by MDOT
Length	8.171 mi[1] (13.150 km)
Existed	c. July 1, 1919[2]–present
Major junctions
South end	WIS 55 near Iron River
North end	US 2 in Iron River
Location
Country	United States
State	Michigan
Counties	Iron
Highway system
Michigan State Trunkline Highway System Interstate US State Byways
← M-72 → M-74

M-73 is a north–south state trunkline highway in the Upper Peninsula of the US state of Michigan. It connects with US Highway 2 (US 2) and Highway 55 (WIS 55) at the state line near Iron River. Running through forest, the highway was first designated along with the rest of the state highway system in 1919. Unchanged since its inception, M-73 was completely paved by the mid-1930s.