BUILD.
      RIDE.
      PROTECT

      Welcome to SDMB!

      Sonoran Desert Mountain Bicyclists is a volunteer-driven 501(c)(3) non-profit organization devoted to the promotion of the sport of mountain bicycling, and views the sport as a vehicle to promote low impact outdoor recreation, conservation, and mountain bicycling opportunities that are environmentally and socially responsible. 

      Help us Preserve Tucson's Bike Trails

      We work to build, maintain, and protect multi-use single-track and mountain bike trail access in the greater Tucson, AZ region. Please consider supporting us through your membership, donations, or helping with trail work. 

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        News and Updates

        By Michael Dematties July 29, 2026
        Local News Volunteers Partner with Forest Service to Restore Mount Graham’s Cunningham Loop Trail July 26, 2026 - by News Director Share Share Pin It Share Forest Service Photo: A dedicated group of community members and trail advocates spent early Saturday morning giving back to the Pinaleño Mountains, coming together to restore key portions of the western Cunningham Loop Trail #316 in the Safford Ranger District. Gila Herald Staff Reports MOUNT GRAHAM — A dedicated group of community members and trail advocates spent early Saturday morning giving back to the Pinaleño Mountains, coming together to restore key portions of the western Cunningham Loop Trail #316 in the Safford Ranger District. The workday—organized by the Sonoran Desert Mountain Bicyclists (SDMB)—brought together 23 volunteers, group members, and U.S. Forest Service personnel, including Safford District Ranger Voelker. The team focused efforts on the southeastern section and connector trail of the western loop. Cunningham Loop Trail #316 is a popular destination for both mountain bikers and hikers, utilizing a blend of historic roadways and singletrack to form an approximately 4.5-mile loop. Forest Service Photo: Volunteers use a crosscut saw to enable moving a large log out of the way. To carry out the restoration without disturbing local wildlife or disrupting the natural surroundings, volunteers relied on traditional, non-motorized hand tools—including crosscut saws, McLeods, pickaxes, and pulaskis. The use of these purpose-built tools allows trail maintenance and construction to proceed quietly year-round. Organizers noted that the volunteer crew represented a wide variety of backgrounds, united by a shared goal to improve outdoor access and enhance the overall visitor experience in the Pinaleños. Collaborative efforts between local organizations like SDMB and the Forest Service remain vital for keeping trails open and well-maintained across the district. Forest Service Photo: The trail has been restored. How the Public Can Help Community members looking to support the trail don’t necessarily need a shovel to contribute. Trail organizers encourage local hikers and mountain bikers to get out and explore the newly restored path. Regular foot and bicycle traffic plays an important role in trail maintenance by helping compact the soil and prevent future erosion. To learn more about local trail stewardship initiatives or get involved with future workdays, visit the Sonoran Desert Mountain Bicyclists website or check out details on the Cunningham Loop Trail #316 . 
        By Michael Dematties July 17, 2026
        Click here to check out IMBA's article about Tucson trails
        By Michael Dematties February 25, 2026
        Raffle Winner 2026
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        About SDMB

        SDMB is dedicated to building, protecting and enhancing mountain bicycling opportunities through:


        • providing fun, safe bicycling experiences and social events for the bicycling community, and at the same time using these events as an opportunity to educate and encourage riders.
        • promoting responsible riding and ethical behavior among the mountain bicycling community .
        • working in concert with land managers and owners to improve trails and infrastructure.
        • working with other user groups to ensure a quality trail experience for all users.
        • efforts to increase the diversity of the mountain bicycling community.
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        Why SDMB Matters

        Your membership in SDMB provides us with the ability to have an influence on mountain bike advocacy, outdoor recreation, trail building, maintenance and access. 

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        Honoring Native Lands: Preserving Trails for All

        We are grateful for the opportunity to live and work on traditionally Native lands, including those belonging to the O'odhamTohono O'odham, and Pascua Yaqui.


        We are proud to be partners with Pima County, the Town of Marana and the Coronado National Forest to keep recreation trails open and enjoyable for all.