Michigan Highways: Since 1997.

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

Belle Isle Roads Map

All state trunkline routes depicted on the map below are unsigned "secret" routes and are not signed in the field. MDOT does not refer to any of these routes by their "secret" route numbers in any public documents. The map below has been updated to reflect the closure and obliteration of segments of Unsigned M-709 and Unsigned M-710—those segments appear as narrower, dashed red lines.

Belle Isle Roads map

Back to Belle Isle Roads Route Listing.