Yellowstone National Park is joining all National Park Service sites in waiving admission fees on Monday in observance of the Martin Luther King, Jr. federal holiday.
Access to the interior of Yellowstone during the winter months is restricted to guided snowmobile and snowcoach trips from the West, South and East entrances. The road from the North Entrance at Gardiner through Mammoth Hot Springs on to Cooke City is open to auto travel all year.
A seven-day pass to Yellowstone and Grand Teton National Parks is normally $25 for a private, noncommercial vehicle.
The NPS is waiving entrance fees on 11 days in 2013 as a way to encourage people to get outdoors. Other fee free dates for 2013 are: April 22 to 26 for National Park Week; Aug. 25 for the National Park Service birthday; Sept. 28 for National Public Lands Day; and Nov. 9 to 11 for Veterans Day holiday weekend.