Estes Park is not very popular with most RVers. We've stayed there a few times but it was long ago and all I remember is that it was at the park entrance road, may have been the KOA. RMNP is probably not among the top RVer rated parks compared to YNP, Tetons and Glacier. We stayed on the west side last time we were in the area and that was because our son was working as a camp councilor that summer. At a camp that charged the kids $8K for 3 weeks at camp.