We're near Glenwood Springs, so pretty close to you. I don't know of any organized group, but do know several other non-vaxing families, besides ourselves, here in the area. My DD is only 13 months, so is a little young for a chickenpox party at this point, but I'd live to talk with you! PM or email me.
Have you posted in Finding your Tribe? I am in Boulder and all of my children have had chicken pox. I also saw your message on Niche. I don't know that there are many totally non-vaxing families there though, judging by previous vaxing conversations.
Jupiter retrograde in the Crab - Release From Pretending
We are moving to Colorado Springs in May and I am quite anxious about trying to find a pediatrician that will honor our decision not to vaccinate with an uncontentious approach. Some pediatricians won't even accept new patients that arent' vaccinated. I'd appreciate anyone that might know of a pediatrician in the Springs area?