Campgrounds near Denver that do not permit campfires

As a suggestion, most localities and/or regions have a prevailing wind direction which means you the OP can ask only for one of the sites on the end of the CG that are upwind so all the smoke blows away from you. Maybe not the perfect solution for every minute you are there but still a lot better than having the smoke blowing at you knowingly. Assuming smoke bothers you for some reason. The office people at a CG likely can probably help you also with what they know about smoke blowing direction as they see it occur every day and/or night.

BTW, I looked up the CG's in Estes Park city and all that I found allow campfires and it's stated in their websites. Also, Barr Lake CG N.E of Denver does also.