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Trail Build & Ride Days
Seasonal trail-work and ride days — see Facebook
📍 Acton, Zimmerman & Phipps Park trailheads
Beginner-friendlyFreeSummer
Volunteer dig days plus group rides; free membership via their newsletter.
Pedal United
South-central Montana’s mountain-bike trail club and IMBA chapter — builds and advocates for sustainable singletrack at Acton, Zimmerman, and Phipps Park.