Colorado's revered national parks and iconic 14ers are big draws for visitors looking to get outside. But as the number of tourists grows, so does the strain on these beloved natural areas.

To try to reduce the impact, the state has partnered with Leave No Trace. The Boulder nonprofit's mission is to lessen peoples' effect on wild areas, and the group sees the need to spread its message to tourists.

Dana Watts, executive director of Leave No Trace, spoke with Colorado Matters host Andrea Dukakis and suggested five things people need to know before adventuring in Colorado.