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Advocating for trails and mountain biking in Boulder, Colorado since 1991
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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…
Chapman Trailhead Project: What You Need to Know
Chapman Drive trail will remain open during the trailhead improvement projects kicking off this spring into the summer.
Lefthand OHV Stakeholder Report Coming Soon
Keystone Policy center has submitted the final report from the Lefthand OHV Area stakeholder dialogue. While we can’t share it just yet, the Boulder Ranger District plans to formally release it in the coming weeks alongside a web-based story map and a press release.
Keeping Trails Open: How BMA Supports the USFS
BMA supports the USFS by clearing deadfall and maintaining trails, ensuring Boulder County’s federal public lands stay open and rideable year-round.
