Colorado has a statewide burn ban in place now. Awhile back there was a discussion about propane “campfires”, and now would be the time you would want one if you’re headed to Colorado.
Also, the smoke is horrendous for much of the state right now. If you can, check the smoke forecast before you leave. Sadly, we may be facing this situation for several months. Also check your route, as I70 has been closed between Gypsum and Glenwood Springs for over a week.