2014 Michigan info from a 2014 MN radio card
(all PL 0.0 / CSQ unless otherwise indicated)
Air to Ground - Upper Peninsula - 171.575
Air to Ground - Lower Peninsula - 171.425
USFS - AG 66 166.675 - AG 28 170.00 - AG 70 167.95
MI DNR Tac 1 - 151.325
MI DNR Tac 2 - 159.27
MI DNR Tac 3 - 159.345
VFIRE 23 - 154.295 - PL 156.7