The National Park Service celebrates 100 years in 2016, resulting in lots of events that you can take part in! There are over 400 national parks in the United States today, 127 of which usually charge some sort of entrance fee. Though the NPS typically offers free entrance for several special occasions throughout the year, this year provides more opportunity - During National Park Week, April 16-24th, the parks waive all entrance fees, so you can visit as many national parks as you want without having to pay anything at all! Here's a complete list of national parks that you can visit for free. Please note - entrance fees are waived but camping site fees are not.

If you are unable to make it this month, don't worry! You’ll have some other chances later this year - August 25 - August 28 for the National Park Service Birthday; September 24th for National Public Lands Day and November 11th for Veterans Day.

“It’s about making great connections,” the parks service says on its website announcing the celebration, “exploring amazing places, discovering open spaces, enjoying affordable vacations, and enhancing America’s best idea—the national parks!”

The following are National Parks in Colorado: