Boulder Mountainbike Alliance

A nonprofit organization

$665 raised by 5 donors

3% complete

$25,000 Goal

Building a Bold Future for Mountain Biking in Boulder

At Boulder Mountainbike Alliance (BMA), we envision a Boulder where world-class mountain biking is accessible from your doorstep. A place where interconnected trails wind through scenic landscapes, offering opportunities for riders of all skill levels to explore, challenge themselves, and connect with nature.

This vision isn’t just a dream—it’s taking shape with every mile of trail built, every connection advocated for, and every rider we inspire. Together with supporters like you, we’re laying the foundation for a thriving mountain biking community.

Turning Vision Into Reality: 2024 Milestones

This year, we’ve made remarkable strides toward creating more and better riding opportunities for everyone:

Transforming Boulder Valley Ranch

In partnership with the City of Boulder, we’re opening 6 miles of new singletrack for mountain bikers. This includes a bike-optimized trail connecting Cobalt, Eagle, and Sage, while Degge and Hidden Valley trails will also welcome bikes for the first time. Combined with North Sky and coming improvements to the Foothills Trail, these additions bring nearly 10 miles of new and improved trails, easily accessible from town.

Advocating for Lefthand

As a key stakeholder in the Lefthand planning process, we are steadfast in our commitment to preserve this area as a destination for advanced riders while ensuring connections between trail systems. 

Bold Connections to Expand Boulder’s Riding Potential

We continue to push for bold projects like the Eldo-to-Walker connection, a dirt route to Betasso from the A-Lodge, and improved access to South Boulder trails.

Improving Trails Across Boulder County

This year’s trail projects reflect our dedication to improving the rider experience:

  • Building the North Sky Trail and optimizing Greenbelt Plateau at Marshall Mesa.
  • Advocating for the interim Marshall Mesa trail to maintain trail access during construction.
  • Enhancing the Bitterbrush Trail at Hall Ranch.
  • Advocating for the new Wapiti Trail at Heil Valley Ranch and collaborating with COMBA on Virginia Canyon.

Fostering Community Through Riding

Our social rides program saw record participation this year, from expert-level adventures to beginner-friendly women’s rides. We’ve also supported the launch of the women’s downhill team, Flow Riders, to inspire and empower the next generation of mountain bikers.

Together, We Can Do Even More

With your support, we can continue to turn our vision into reality. In 2025, we aim to:

  • Expand trail access and connectivity throughout Boulder County.
  • Advocate for bold new trail projects to connect riders with even more adventure.
  • Grow our community through rides, events, and educational programs.

Your donation directly funds trail building, maintenance, advocacy, and community programs that make Boulder a better place to ride.

Mission

The Boulder Mountainbike Alliance's mission is to serve as a positive voice for mountain biking in the greater Boulder Colorado area by improving the trail experience for all users through volunteerism, social rides and events, advocacy, and trail building.

Boulder Mountainbike Alliance works towards three major goals: Build and Maintain Trails, Advocate for Trail Access & Create a Community of Mountain Bikers.

Background Statement

Boulder Mountainbike Alliance (BMA) is the voice for mountain bike trails in Boulder County. Originally established in 1991 as the Boulder Offroad Alliance (BOA), BMA was formed in response to the closure of nearly every trail in the Boulder area to mountain bikes. The organization represented cyclists who wanted the right to ride trails in Boulder again. In 2006, we changed our name to Boulder Mountainbike Alliance to more accurately describe our focus and mission.

Since then, we have worked nonstop to gain more trail access and have had some amazing victories. If you ride now, the landscape of trails that you use are largely a result of nearly two decades of attending public meetings, designing trails and, of course, volunteer trail building efforts. To learn about our last five year's successes visit Advocacy Success.

We design, build, and maintain trails in partnership with land management agencies in Boulder County. So far, we have completed more than 165 project days which contributed more than 27,500 hours of volunteer time. This is the equivalent of providing the land management agencies of Boulder County with a full time trail worker for more than fourteen years. The value of the contributed volunteer time alone exceeds $500,000. You can see the details at Trail Projects.

In 1996, BMA started the BMA Boulder Mountain Bike Patrol as a means of helping all users in the outdoor community to safely use our trails. Bike patrollers are not "the Man," but are volunteers who are prepared to help with bike problems, minor first aid, emergency response and, of course, provide great information about trails in the County. In 2017, our team of over 100 active patrollers spent about 18,000 hours and covered almost 11,000 miles while on patrol for Boulder City, County, and the U.S. Forest Service. You can learn more at Bike Patrol.

In 2009, BMA entered into a massive project with the City of Boulder to create one of the premier off-road urban bike parks in the country. Open since 2011, Valmont Bike Park now offers kids of all ages the chance to practice all forms of off-road biking from cross country mountain biking to jumping to cyclocross barriers right in town. In support of this effort we raised over $500,000 in public donations for the design and construction of the park.

Organization Data

Summary

Organization name

Boulder Mountainbike Alliance

other names

BMA, Boulder Off-Road Alliance

Year Established

1991

Tax id (EIN)

84-1240757

Category

Recreation & Sports

Organization Size

Medium Organization

Address

PO Box 4954
Boulder, CO 80306

Mailing

PO Box 4954
Boulder, CO 80306

Service areas

Boulder County, CO, US