Gallatin County (MT)
From The RadioReference Wiki
Police Unit Numbering
Bozeman Units 1xx Belgrade Units 2xx Manhattan Unit 4xx Gallatin Sheriff Units 6xx
Hwy Patrol 154.68 and 155.46 seam to be simulcast for southwestern MT.
I-90, I-15 areas
Butte,South Livingston-Big Sky-Dillon area.