The Colorado Mountain Club is organized into local groups. When you join the Club, you join one of the local groups. There is even a group for members who live outside the state of Colorado , called Friends of Colorado. Your local group will provide the majority of Club services that you receive. All activities of any group are open to all CMC members regardless of group affiliation. Contact us at 303-279-3080 or email us at cmcoffice@cmc.org.