Please contact Geospatial Information for any questions at 406-444-6119.

You will find our road condition maps in the Traveler Information space.

Visit the Interactive Map Gallery

The mileage calculator has been removed from MDT’s Internet site due to it being a cost prohibitive process to maintain and prone to inaccuracies or errors. There are publicly available tools such as Google Maps, Bing Maps, MapQuest, or OpenStreetmap that could meet your needs.

Official Montana Highway Travel Map

2021 Montana Highway Map (Front) | Order Copies (Free)
2021 Montana Highway Map (Back - Tourism Details)
Click and Zoom Online Version

Highway Maps

Montana Highway Functional Classification Map
Montana Highway System Routes Map
Historical Highway Maps
Memorial Sites and Roadways in Montana with Special Designations
Montana Rail System Map
Railroad Crossings Map

Federal and State Tentative Construction (TCP) Projects 2024-2028

Statewide | Interactive Web Map
District 1 | District 2 | District 3 | District 4 | District 5

Active Projects Map

Active Projects Map | Mobile


Montana State Airports

Bicycle/Pedestrian Maps

Bicycling the Big Sky Map
Montana Public Transit Systems Map


Bridge Load Posting Map | Help Guide
Scour Critical Bridge Map

City, County & Urban Maps

City Maps
County Maps
Urban Maps
Unincorporated Towns

Environmental Maps

MS4 Storm Water Maps
MDT Mitigation Site and Montana Watershed Map

Road Condition/Camera/Weather Maps

Road Condition Maps
Cameras and Road Weather Information System (RWIS) Map

Traffic Maps

Traffic, Flow and Recorder Maps