State highway control section/physical road reference atlas
"The major purpose of the atlas is to provide a consistent and accurate statewide location referencing tool for your work on the state trunkline system. This new version of the highway atlas provides for an instant reference between the Control Section (CS) and the Physical Reference (PR) systems"--Electronic version introd
Map, English, 2001
Michigan Dept. of Transportation, [Lansing, Mich.], 2001