Following the closure of the Sylvan Pass, roads in Yellowstone National Park will start closing Sunday, March 4, 2018 to for more spring plowing.
Sunday at 9 p.m., the road between Mammoth Hot Springs and Norris will close to oversnow travel.
Monday, March 5, 2018, the Mammoth Hot Springs Hotel & Cabins, Mammoth Dining Room, Gift Shop, and Ski Shop will close as well for the season.
The Mammoth Campground, Yellowstone General Store, Post Office, Medical Clinic, Albright Visitor Center, and self-service fuel pumps remain open all year. In addition, the self-serve fuel pumps at Tower Junction remain open all year, along with the road between Mammoth, Tower, and the Northeast Entrance/Cooke City, Montana.
All roads will close to oversnow travel by March 15. The schedule is below. All roads listed will close at 9 p.m. MST:
March 6: Norris to Madison, Norris to Canyon Village.
March 11: Canyon Village to Fishing Bridge, Fishing Bridge to Lake Butte Overlook.
March 15: All remaining interior roads save for the North-Northeast Entrance road.
Weather permitting, the roads in Yellowstone National Park will start reopening Friday, April 20, 2018.