The National Park Service announced the dates for entrance fee-free days in 2020, and the first one is in the first month of the year.
Entrance fees will be waived at more than 400 national parks on the following days of significance:
● Monday, January 20 – Martin Luther King, Jr. Day
● Saturday, April 18 – First Day of National Park Week/National Junior Ranger Day
● Tuesday, August 25 – National Park Service Birthday
● Saturday, September 26 – National Public Lands Day
● Wednesday, November 11 – Veterans Day
Check out the National Parks that are located in Colorado by clicking this link.