Yellowstone and Grand Teton National Parks will join National Parks across the nation in offering free admission on Monday, August 25.

Camping and other fees will remain in effect, however.

The National Park Service is waiving admission Fees Monday in celebration of of it's 98th birthday. Monday is one of nine days during 2014 when normal admission fees  to national parks are waived.

There are two more such days remaining this year. They include National Public Lands Day on September 27 and Veteran's Day on November 11.

A seven day pass to Yellowstone or Grand Teton National Parks normally costs $25 for a private, non-commercial vehicle.