Yellowstone National Park is joining all National Park Service (NPS) sites across the nation in waiving admission fees on January 20, in observance of the Martin Luther King, Jr., federal holiday.

According to a news release, the NPS is waiving entrance fees on 9 days in 2014 as a way to encourage people to get outdoors and enjoy the remarkable landscapes and historical and cultural sites national parks have to offer.
The road from the North Entrance at Gardiner, Montana, through Mammoth Hot Springs on to Cooke City, Montana, outside the park’s Northeast Entrance, is open to wheeled vehicle travel all year. Access to the interior of Yellowstone and iconic locations like Old Faithful and the Grand Canyon of the Yellowstone is restricted to guided snowmobile and snowcoach trips from the North, West, South, and East entrances during the winter months.