Welcome to CBMBA—the oldest mountain bike club on the PLANET! Since 1983 CBMBA has been creating, maintaining, advocating for, and putting mad love into 450+ miles of singletrack around Crested Butte.

CBMBA works to improve trails, conserve landscapes, and build community through volunteer trail work days, group rides, events, and a professional trail and stewardship crew, the Crested Butte Conservation Corps (CBCC). All trail users benefit from the work that CBMBA does. Help us build and maintain sustainable trails and conserve the landscapes around CB by making a donation, becoming a member, volunteering, or attending an event. 

Want to learn more about the summer and winter trails around CB? Check out the “Conditions” (summer) or “Grooming Report” (winter) and peruse the rides for ways to link the trails into epic loops.



We have some pretty muddy trails out there thanks to the fall snow storms. Most riding around CB is over for the season. For more information on what trails are still dry please check our trail conditions report.


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