Portal:Michigan highways/Did you know/July 2012
![Marquette–Negaunee Road in 1917 with the first highway centerline in the country](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9c/M-15_centerline_1917.jpg/100px-M-15_centerline_1917.jpg)
- ... that the first highway centerline (pictured) was painted on the Marquette–Negaunee Road by K.I. Sawyer in 1917?
- ... that M-102 has been featured in music and movies?
- ... that US 45 runs from Mobile, Alabama, to Ontonagon in the Upper Peninsula?
- ... that until it was truncated, M-32 used to cross the Lower Peninsula from Lake Michigan to Lake Huron?
- ... that M-27 used to be a part of US 27?