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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!
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All The News…
Good News: Bicycle Access Through Boulder Reservoir Remains Open
After conversations with City of Boulder Parks & Recreation staff, the City has confirmed that the dam road and the eastern access point remain open to bicycles.
New Sign Raises Questions About Regional Trail Access at Boulder Reservoir
A long-established trail connection across the Boulder Reservoir dam is being discouraged, raising questions about regional trail access, bicycle safety, and the future of this important corridor.
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…


