Michigan Highways: Since 1997.

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M-22 & M-109 junction route signage in Glen Arbor, Michigan

Former M-178 Route Map

Modified from the 1940 Michigan State Highway Department Traffic Survey Map of the western portion of Alger County showing Former M-178 between M-28 and M-94 at Munising.

Former M-178 Route Map, MSHD 1940
This Map Presentation is Copyright ©2022 Christopher J. Bessert, All Rights Reserved. Please do not copy without permission.

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