M-218 began at a junction with I-96 in Wixom. From there, the road traveled north via Wixom Road to present-day Pontiac Trail (which at the time was 14 Mile Road) and continued northeast. The trunkline then continued along Pontiac Trail, meandering through the communities of Walled Lake, Orchard Lake Village, Keego Harbor and Sylvan Lake in Oakland County's lake country. Northeast of Sylvan lake, the highway crossed US 10 (Telegraph Road) and crossed into Pontiac. M-218 terminated at a junction with Bus. US 10 in downtown.[2][5]
History
When M-218 was first introduced into the State Trunkline System by 1936, it served as a connector between M-58 in Pontiac and US 16 in West Novi.[1] In 1938, the route was extended into Pontiac where it terminated at US 10.[6][7] The trunkline continued to serve in this capacity until it was removed from the trunkline system in 1963.[2][3]
^ abcMichigan State Highway Department (1963). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ L13–M13. OCLC12701120. Retrieved October 17, 2019 – via Michigan History Center.
^ abMichigan State Highway Department (1964). Official Highway Map (Map). [c. 1:918,720]. Lansing: Michigan State Highway Department. §§ L13–M13. OCLC12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
^Michigan State Highway Department & Rand McNally (December 1, 1937). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.
^Michigan State Highway Department & Rand McNally (May 1, 1938). Official Michigan Highway Map (Map) (Spring ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC12701143. Retrieved October 17, 2019 – via Michigan History Center.