Advocating for trails and mountain biking in Boulder, Colorado since 1991
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 a weekly group ride.
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!
All The News…
Now that Boulder County wrapped up helicopter mulching operations, BMA is busy getting Wapiti ready for an out-and-back from Ponderosa Loop Sept. 16 reopening! Southside trailheads, Schoolhouse & Overland will remain closed until spring 2022.
After 17 weeks of preparation, 24 members of Brute Squad traveled on Labor Day weekend to Spearfish, South Dakota to finish up the 2021 season by participating in the 20th running of the Dakota Five-O race.
BMA, in partnership with the Colorado Mountain Bike Association (COMBA) is releasing a limited run of 1st edition Maryland Mountain t-shirts with proceeds going directly into creating more killer MTB experiences in Black Hawk, CO!