The Yellowstone National Park West Entrance Opens for the Spring to Visitors in:
2017 Spring Wheeled Vehicle Openings
April 20: Mammoth to Old Faithful; Madison to West Entrance; Norris to Canyon.
May 4: East Entrance to Lake (Sylvan Pass), Canyon Junction to Lake.
May 11: South Entrance to West Thumb, Lake to West Thumb, West Thumb to Old Faithful (Craig Pass), Tower Junction to Tower Fall.
May 25: Tower Fall to Canyon Junction (Dunraven Pass)
May 25: Beartooth Highway
General Road and Entrance Information
Most park roads are CLOSED to auto travel between early November and late April.
The road from the North Entrance at Gardiner, Montana, through the park to Cooke City, Montana, via Tower Junction is open twenty-four hours a day, all year to auto travel.
U.S. Highway 212 is closed to auto travel just east of Cooke City from late fall to late spring.