High Quality Content by WIKIPEDIA articles! M-80 is a state trunkline highway in the Upper Peninsula of the US state of Michigan. It runs from Kinross to M-129 near Donaldson. The highway serves the site of the former Kincheloe Air Force Base and the current Chippewa County International Airport. The designation has been used twice before on roads in the Lower Peninsula in the 1910s through 1930s while the current usage dates back to the mid-1990s.