M-12 is a former state highway in the Upper Peninsula of Michigan. It was replaced in 1926 by: U.S. Highway 2 in Michigan (US 2) between the state line at Ironwood and Crystal Falls M-69 between Crystal Falls and Sagola M-45 between Sagola and Iron Mountain (now M-95) US 2 between Iron Mountain and Sault Ste. Marie
Since 1926, M-12 north of the St. Ignace area has been replaced by: Business Loop Interstate 75 through St. Ignace County Road H-63 to the Rogers Park area M-134 to Cedarville M-129 to Sault Ste. Marie Business Spur Interstate 75 in Sault Ste. Marie
References
External links Former M-12 at Michigan Highways