Mark your calendar for these fee-free dates in 2012 and check here for at your list of US National Parks:
- January 14-16 Martin Luther King Jr. weekend
- April 21-29 National Park Week
- June 9 Get Outdoors Day
- September 29 National Public Lands Day
- November 10-12 Veterans Day weekend
Fee waiver includes: entrance fees, commercial tour fees, and transportation entrance fees. Other fees such as reservation, camping, tours, concession and fees collected by third parties are not included unless stated otherwise.