We are planning a 10 day road trip at the end of September (21-30). We will be flying into Denver, then heading to RMNP -> Moab -> Mesa Verde NP ->Telluride/Ouray/Black Canyon NP -> Colorado Springs -> Denver. Do we need to be concerned about road conditions in the areas we would be driving? Would we be better off getting an SUV, or would a minivan be okay? Thanks!