Yellowstone National Park covers nearly 3,500 square miles in the northwest corner of Wyoming (3% of the park is in Montana and 1% is in Idaho). Yellowstone has five entrance stations, and several are closed to regular vehicles during winter. It takes many hours to drive between these entrances, so be sure to check the status of roads at the entrance you intend to use while planning your trip and before you arrive. We also recommend checking traveler information websites maintained by Idaho, Montana, and Wyoming. For anyone relying on GPS, we offer GPS coordinates (and some travel advice) for many destinations in the park.
Commercial airlines serve the following airports near Yellowstone National Park all year: Cody and Jackson, WY; Bozeman and Billings, MT, and Idaho Falls, ID. The West Yellowstone, MT airport is serviced from June to early September from Salt Lake City, UT.
Bus service from Bozeman, MT to West Yellowstone, MT via Highway 191 is available all year. Bus service directly from Idaho to West Yellowstone is limited to the summer months. Commercial transportation from Bozeman, MT to Gardiner, MT is available during the winter and summer seasons. Commercial transportation to the park from Cody and Jackson, WY is available during the summer season. Contact nearby cities for specific carriers and schedules.
Train service is not available to Yellowstone National Park. The nearest train depots are in southeast Idaho, Salt Lake City, Utah and northern Montana. Contact Amtrak for specific schedules.
Around 50 miles (80 km) of road separates popular destinations like Old Faithful and the Grand Canyon of the Yellowstone: a vehicle is generally required to visit the park. Public transportation is not available in Yellowstone, but many companies provide shuttle services and tours.
Road construction occurs every year as soon as roads are cleared of snow. Check the roads page to see if any projects will affect your visit.
The speed limit in Yellowstone is 45 mph unless posted otherwise. Expect longer than usual driving times in Yellowstone. When watching wildlife, help keep traffic flowing by pulling over and parking in designated areas.
If conditions in Yellowstone are bad enough to require tire chains, we generally close the roads until it’s safe to travel.
Alternative Fuel Vehicles
Do you plan to travel to the park in an alternative fuel vehicle? If so, good for you! Your actions help us reduce greenhouse gas emissions and reduce petroleum use. Plan your trip with the Alternative Fueling Station Locator from the Department of Energy (search on zip code 82190).
Anyone traveling through the park for business or commercial purposes needs a commercial travel permit.
Many roads in Yellowstone wind their way over mountain passes: drivers may encounter inclement weather, sharp curves, and steep grades. The maximum length for recreation vehicles is 75 feet.