All of Yellowstone’s Interior Roads have closed for the season to allow snow to accumulate on the roadways for the upcoming winter snowcoach and snowmobile season.  This includes all roads south of Mammoth and Tower, including the West, South and East Entrances.  Most of these roads, except for Dunraven Pass will re-open on 12/19/07 for the winter season. 

The Northern Range Highway

The road between the North Entrance and Cooke City, just outside of the Northeast Entrance is open year ‘round.  This is a very long trip from Big Sky and it is recommended that you take a tour to make the most of your day.  Currently, the Upper Terrace and Petrified Tree Drives are still open and will close when there is snow to close them.  Stephens Creek Road is also open.
Snowtires are Required.  Watch for wildlife on the roadway everywhere south of Livingston, MT and also from Big Sky to Bozeman.

The Gallatin District

The road is open and snowtires are advised.  Watch for wildlife on the roadway from mile marker 1 to 80 on 191. 

Interior Roads

Closed to all modes of transportation including bicycle and foot.