More
Fun
Trails
Advocating for trails and mountain biking in Boulder, Colorado since 1991
Get Trail
Conditions
See Where
to Ride
Build
Trail
Join a
Group Ride
Take a
Skills Clinic
Become a
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!
All The News…
You showed up and we kept bike access!
Thank you, BMA members and supporters. Your voice was heard! This afternoon, the Boulder County Commissioners met with Parks & Open Space staff to provide direction on the Alternating Trail Use Pilot. Rather than pursue no-bike days or no-hike days on county…
Our Letter to the Commissioners: Build Better Trails, Not More Restrictions
Today we shared our thoughts with the Boulder County Commissioners ahead of their work session on the Alternating Trail Use Pilot. While we’re encouraged that staff moved away from alternating trail closures, we believe there’s a better path forward: invest in education, trail design, stewardship, and new trail opportunities instead of restricting access.
North Foothills Improvements Coming in 2026
The North Foothills trail is getting a big upgrade in 2026, including rerouting the steep clover-leaf entrance to the North Sky Bridge.
