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 our three weekly rides – one for beginners, one for women of all levels, and one for intermediate to advanced riders.
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…
The City of Louisville has proposed Singletrack Sidewalks concept plan for “Fun Routes to School” and it needs your support for this and more bike friendly commuting & recreation trail accommodations!read more
The first of 4 2019 BMA West Magnolia Trail Projects is complete, read about this volunteer-built trail and what else is happening this fall.read more
The decision about the Eldo-to-Walker multi-use trail will not be part of the discussion but you can weigh in on other visitor use issues at either of two public open houses or an online survey.read more