Yellowstone National Park

Adjacent to the town of West Yellowstone, Montana, the West Entrance is usually open (weather-dependent) to wheeled vehicles from the third Friday in April through early November, and to tracked-oversnow (snowmobiles and snowcoaches) vehicles from December 15 to March 15.

Near the gateway community of Gardiner, Montana, the North Entrance is the only park entrance open to wheeled vehicles all year. November through April, the North Entrance provides the only access to Cooke City, Montana. US Highway 212 east of Cooke City is closed to wheeled vehicles November through April. The road from Mammoth to Norris opens to wheeled vehicles the third Friday in April through early November, and to tracked-oversnow vehicles, conditions permitting, from December 15 to early March.

Depending on the weather and conditions, this entrance usually opens to wheeled vehicles the first Friday in May and to tracked-oversnow vehicles December 22 through March 15.

Open (weather-dependent) to wheeled vehicles from the second Friday in May through early November and to tracked-oversnow vehicles from December 15 to March 15. Limited services are available near the South Entrance.

Near the gateway communities of Silver Gate and Cooke City, Montana, this entrance is open year around for wheeled vehicle access to Cooke City through Gardiner, Montana. US Highway 212 east of Cooke City is closed to wheeled vehicles November through April. Opening dates for roads east of Cooke City vary from year to year, depending on the weather. The Beartooth Highway is open from late May/early June (weather dependent) to mid October.