Free admission to national parks Sunday

The National Park Service is turning 97, but you are getting the present.
Yellowstone National Park said this Sunday, there is free admission to all national parks. Camping and other fees aren’t being waived, though.
The NPS is having other free days, too:
– Sept. 28 for National Public Lands Day
– Nov. 9 to 11 for Veteran’s Day holiday weekend.
A seven-day pass to Yellowstone and Grand Teton National Parks is normally $25 for a private, noncommercial vehicle.