MT-1 from I-90 at Drummond or from Anaconda, to Georgetown Lake. This page puts MDT's plow trucks, MDT 511's cameras and its closure and crash reports for that road on one map, refreshed every minute. The resort's own snow report covers the mountain itself.
MDT trucks reporting a position on MT-1, I-90 within 60 miles of the base, or on any road within 20 miles. A pin is a position, not proof the road is open or bare. Trucks not heard from in 60 minutes are faded.
Positions come from the trucks' own GPS, through MDT, and refresh here every minute. "Last reported" is the truck's time, not ours.
MDT 511 reports on MT-1, I-90 within 60 miles of the base, or on any road inside the 20 miles ring: full closures, crashes, weather, hazards and lane or ramp closures. Scheduled closures are marked. Nothing listed means nothing posted, not an all-clear.
Every MDT truck that reports a position, statewide, on one map.
Snow reportThe resort's own report: snowfall, lifts and runs. Opens the resort's site.
CorridorThe whole I-90 corridor, every state it crosses, alerts by mile marker.
Chain lawWhen chains or traction tires are required on Montana highways, and the fines where the law states them.
CamerasEvery MDT 511 camera on one map, with the route and mile marker where the DOT gives one.
Road conditionsEvery closure and crash MDT 511 is publishing, statewide.
Official sourceMontana's traveler information site. The list of record for closures, restrictions and detours.
A plow pin is where a MDT truck was when it last reported, with the route and mile the DOT attached. It says a truck was there. It does not say the road behind it is bare, and it does not say when the next pass comes. The DOT's camera, where there is one on MT-1, I-90, shows the surface itself. The closure list is MDT 511's own feed, read every five minutes and converted to the format MileCheck uses for every state. A quiet list means MDT 511 has posted nothing for these roads, which is different from a road being open.
The 20 miles ring is the search area for trucks and cameras. A truck reporting on MT-1, I-90 is kept out to 60 miles from the base, the stretch a driver is actually on; anything inside the ring is kept whatever road it is on, so a truck on a side road near the base still shows. The resort's own snow report is the source for snowfall, lifts and the parking lots.
The map shows every closure and crash MDT 511 is publishing on MT-1, I-90 as a red or orange marker, and the list under it says when the DOT last updated each one. No marker means MDT 511 has not posted a closure, not that the road is open. It reloads every five minutes. For the official word, open MDT 511.
On the map, as blue truck pins. Each is a MDT truck's last reported GPS position, with the route and mile the DOT snapped it to, how long ago it reported, and the material it is spreading where the DOT sends that. A pin tells you a truck was there at that moment. It does not tell you the lane behind it is bare. Trucks that have not reported in an hour are faded and say so.
Chain and traction requirements are set by MDT per road and per storm, and they show up in the MDT 511 feed as restrictions, which this page lists when they are on MT-1, I-90. Montana's chain law explains the levels and who they apply to. Always follow the posted signs.
Plow positions every minute, closures and crashes every five minutes, the camera list every ten. MileCheck's server reads the MDT and MDT 511 feeds and converts them to one format. Each truck and each alert carries its own time stamp from the DOT, shown next to it.
MileCheck shows your mile marker and the MDT 511 alerts ahead of you on MT-1, I-90, offline in dead zones, on CarPlay and Android Auto. Premium starts with a free trial.
The Monthly Highway Report
Your state's reported closures, crashes and roadwork, once a month by email. See the September report. No spam.
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