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Advocating for trails and mountain biking in Boulder, Colorado since 1991
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BMA Member
BMA has a ton of cool stuff happening all season.
Sign up for a trail building event to put your muscle to good use.
Join us on one of our weekly group rides.
Learn how to take your mountain biking skills to the next level by attending one of BMA’s skills clinics.
See the other fun stuff we’re planning!
Upcoming Events
All The News...
New BMA Gear, Made for the Trail
Limited edition jersey, order by August 3!
BMA Awarded Second Boulder County Grant for Volunteer First Aid Training
BMA just landed a second grant from Boulder County to keep growing our volunteer first aid training program, and we’ve already trained 54 volunteers who are out on the trail ready to help.
Big Tent BoCo Clears a Major Hurdle
Big Tent BoCo just turned in over 18,000 signatures to get county commission expansion on the November ballot, and BMA is proud we helped make it happen because more commissioners means better decisions for our trails and open spaces.
