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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 rides – 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!
Upcoming Events
Tue
27
TRAIL BUILDING: Picture Rock
Tuesday, September 27 @ 4:00 pm - 7:00 pm
Wed
28
SKILLS CLINIC: September MTB Series
Wednesday, September 28 @ 5:00 pm - 7:00 pm
Wed
28
RIDE: More Biking, Less Hiking!
Wednesday, September 28 @ 5:00 pm - 7:00 pm
Thu
29
SKILLS CLINIC: Progression Session – Cornering
Thursday, September 29 @ 5:00 pm - 7:00 pm
All The News…
Second chance to buy 2022 BMA gear
Hey all you cool cats and kittens, here’s another chance to get your own sweet BMA gear.
The Rutter Report: September Picture Rock
September Picture Rock improvements update.
The Rutter Report: September 2022 Doudy Draw
This project focused on repairing trail “braiding” damage and bringing the trail back to one singletrack tread. We also repaired eroded sections and added rock armoring and gravel to historically muddy areas to make the trail more resilient during wet weather and need fewer muddy closures.
