Boulder Mountainbike Alliance (BMA)
Boulder Mountainbike Alliance

The Boulder Mountainbike Alliance (BMA) serves to improve the trail experience for everyone in Boulder County, Colorado through social rides and events, education, advocacy, and trail building.
The Boulder Mountainbike Alliance has existed since 1991 and is a registered non-profit organization serving to design, build, and maintain trails for Boulder County land management agencies. The Boulder Mountainbike Alliance serves as a steward to all of our local mountain bike trails.

To-date, the Boulder Mountainbike Alliance has completed over 110 major projects and contributed more than 30,000 hours of volunteering time. Additionally, the BMA is always working toward the responsible development of new trails in the Boulder area.
BMA Website & Contact Information
Website: Boulder Mountainbike Alliance (BMA)
P.O. Box 4954
Boulder, CO 80306-4954
BMA has developed a great community. You can find out more about BMA activities at these locations:
- BMA Calendar of activites and community events
- Social Rides - Regular rides to meet people, build skills, and have fun
- Bike Patrol - Volunteer bike patrollers ride County, City, and U.S. Forest Service trails and provide simple assistance such as giving directions to trail users, helping with minor mountain bike repairs, and educating riders about the rules of the trail.
- Valmont Bike Park - Find out the latest on the Valmont Bike Park project
New Mountain Biking Development | Valmont Bike Park
The BMA and others have built an epic bike park in Boulder Colorado!






