Most park roads are not open to motorized vehicle traffic between mid-March and late April while plowing is underway. The closed roads begin opening April 26, 2013. Please see the spring road opening schedule below for details.
The North Entrance at Gardiner, Montana, through the park to Cooke City, Montana, is open all year. Please note that the road is closed just east of Cooke City from late fall to late spring.
For 2013, roads will open, weather permitting, to motorized wheeled vehicles as follows:
Friday, April 26: West Yellowstone and Mammoth Hot Springs to Old Faithful
Friday, May 3: Norris Junction to Canyon Junction; Canyon Junction to Fishing Bridge; and Fishing Bridge to East Entrance (Sylvan Pass)
Friday, May 10: Fishing Bridge to Grant to South Entrance
No later than Friday, May 24: Tower Junction to Tower Fall; Cooke City to Chief Joseph Hwy.
After May 24 (tentative): West Thumb Junction over Craig Pass to Old Faithful
Early June: Tower Fall to Canyon Junction (Dunraven Pass)
Friday, June 14: Beartooth Highway