Due to high elevations and prone to heavy mountain snow fall during the winter months, the department closes certain roads during the winter season. Once these roads are closed for the winter season, no winter maintenance is provided and travel on these roads is prohibited. For current statuses on these routes, visit our 511 Travel Information map or download our mobile app, MDT 511.

Route Mile Post Name County
US-212 45 - 56 Beartooth Highway Carbon
MT-38 14 - 38 Skalkaho Pass Ravalli - Granite
MT-49 4 - 11 Looking Glass Highway Glacier
S-471 16 - 22 Thompson Pass Sanders