Although conditions were rated poor, five routes in Yellowstone National Park have been opened to commercially guided snowmobile and snow coach travel.
The open routes include the West Entrance to Madison Junction; Madison to Old Faithful; Madison to Norris; and Norris to Canyon. The route between Norris and Mammoth Hot Springs is also open, but snowmobile travel is not advised.
Late Friday, the park also reopened Sylvan Pass to oversnow travel after using a howitzer to reduce avalanche danger. In addition, the road from Canyon to Fishing Bridge has also reopened.
All other interior park roads normally open remain temporarily closed.
The road between the park's North Entrance at Gardiner through Mammoth Hot Springs and on to Cooke City remains open to wheeled-vehicle travel by the public, but snow tires are required.