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 membervolunteering, or attending an event.

Want to learn more about the singletrack around CB? Check out the Trail Report for info on our summer trails, and peruse the rides for ways to link the trails into epic loops.

Support Sustainable Trails

Winter Trails

It’s time for fat biking! In winter CBMBA grooms winter trails that are free and open to ALL users! Specifically, they’re built for fat biking, but you’re welcome to use them for cross-country skiing, walking your dog, snowshoeing, or whatever other uses are permitted on those lands (i.e. motorized vs. non-motorized use).

Check out our Winter Site for a full slate of information on winter/fat biking trails in the Gunnison Valley.

If you use the Winter Trails, please consider supporting our work with a Membership or Donation. We groom these trails so you can use them for free, but the grooming ain’t actually free! Help us provide trails year-round so that YOU can get connected to the lands you love.

Happy (Winter) Trails!

Winter Trail Report



Enter email address in the box below and click “STAY TUNED” to get the latest in workdays, trail info, events, advocacy and more!


View All