Seasonal Road Closures
Seasonal road closures may limit auto access to some areas in the park during the winter. Highway 89/26/191/287 from Jackson, WY to Flagg Ranch and the park's East boundary is open year-round.
SEASONAL ROAD CLOSURES
The Teton Park Road from Taggart Lake Trailhead to the Signal Mountain Lodge and the Moose-Wilson Road from the Death Canyon Trailhead to the Granite Canyon Trailhead are closed to motorized vehicles from November 1st through April 30th. The Antelope Flats Road and Signal Mountain Summit Road are also closed during this period. In the John D. Rockefeller, Jr. Memorial Parkway the Grassy Lake Road and Highway 89/191/287 between Flagg Ranch and Yellowstone's South Entrance is closed to cars during the winter, but open for travel by snowmobile. For more information about snowmobile use and visiting the park during the winter visit our Winter Trip Planner page.
For Yellowstone National Park road information, check online at Yellowstone Live - Roads or phone 307-344-2117. During winter, the roads in Yellowstone are closed to motorized vehicles except the road from Mammoth Hot Springs to Cooke City, MT.