Portal:Michigan highways/Selected article/July 2017
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M-73 is a north–south state trunkline highway in the Upper Peninsula. The highway connects with Highway 55 at the state line near Iron River, crossing the Brule River. It runs through fields and forest, past rivers to a terminus with US 2 west of downtown Iron River. 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. The Brule River bridge was built in 1992 and replaced in 2003.