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The Sonoran Desert Mountain Bicyclists is pleased to offer a $1000 grant available to Pima County residents and organizations with the intent of bettering the local biking community. For more information, see our Advocacy Page.


Thanks for visiting the Sonoran Desert Mountain Bicyclists! We are an all-volunteer 501c3 non-profit organization devoted to the promotion of mountain biking, and view the sport as a vehicle to promote low impact outdoor recreation, conservation, and opportunities that are environmentally and socially responsible. We hope that you will use this website as your Tucson mountain biking resource for finding events and trails to ride, as well as to stay up-to-date and help our trail advocacy efforts.

Yetman Trail Re-Route DONE!

We want to thank all of you who joined us for our Pint Night fundraiser, donated through the website, and showed up to our four trail work day events. With your help, we knocked out that trail and it’s looking great. See below for our inaugural “official” ride for our January Last Saturday Ride. Hope to see you there!

Take a look at the Pint Night and trail day photos on our photos page or our facebook albums.

3-17-14 Update

Last Saturday Ride – Arizona Trail Day! – March 29th

Please join our Last Saturday Ride in coordination with the Arizona Trail Day- Tucson and the Colossal Campout. We will be meeting at 8:30 AM at the Pistol Hill Road trailhead (at the kiosk just South of Old Spanish Trail). We will do an out and back to Camino Loma Alta, including the newly opened (to mountain bikes) Hope Camp Trail. We will then keep going past Pistol Hill Road to Colossal Cave park to participate in the AZ Trail Day festivities, and folks can ride back to Pistol Hill Rd. at their leisure, or as a group.

Please RSVP here on Eventbright.

The out and back to Camino Loma Alta totals 14 miles, and the out and back to Colossal Cave will total about another 9 miles, for a total of roughly 23 miles with maybe 2000 feet of climbing. The trail is rolling and non-technical. We will move at a relaxed pace, and no one will get dropped. If folks don’t want to do the whole thing they can turn around at any point, and there will be the option to drive from Pistol Hill to the park rather than riding on singletrack.

Pistol Hill Rd. to Camino Loma Alta trail information.

In the evening, the Arizona Trail Association is hosting the Colossal Campout at La Sevilla Campground at Colossal Cave. Join us for live music, food from It’s Greek to Me and Arizona Trail Ale by the campfire.

This event is part of Sirena’s 800-mile Arizona Trail Trek to promote the Arizona National Scenic Trail, the Gateway Communities, and the new official guidebook. More details on the AZT Trek can be found at

Donations are greatly appreciated and go toward Sirena’s goal of raising $20,000 to protect, promote and maintain the Arizona National Scenic Trail!

Trail Love Day – Bug Springs – April 5

We will be working on Bug Springs Trail, doing some tread maintenance below the hoodoos. Meet at Le Buzz at 7:30AM, or the lower Bugs trailhead at 8:00. Plan on working until noon.

1-9-14 Update

Arizona Trail Jamboree

The good guys over at TopoFusion are once again putting on their incredibly popular Arizona Trail Jamboree on Saturday, January 11th. This is a charity ride that benefits the Arizona Trail Association.  This is 25- or 35-miles of sweet, sweet singletrack (one-way), and ends with free beer from New Belgium, schwag and food at Pistol Hill Road. SDMB will be hosting the “after party” at 12noon.   Hope to see you there!

Last “Saturday” Ride – Yetman Wash Trail Ride – BBQ and Bike Demo!
SUNDAY, January 26th – 10am – 2pm

A slight change-up this month in that the LSR is actually going to be on SUNDAY. Everyone is welcome to join us for the official Yetman Wash Bypass trail opening event and ride from 10am-2pm. We’re going to have several different-paced rides for all skill levels and ages, as well as burgers, hot dogs and drinks at the Genser trailhead. Arizona Bicycle Experts is going to be bringing their demo bikes so you take a spin on some great wheels!

Details: Meet at the Richard Genser trailhead and be ready to ride at 10am. We’ll have a few different rides headed out at various times and distances. If you don’t feel like riding with a group, do your own thing, but stop by for a snack. Burgers, hot dogs and drinks will be provided by SDMB around 11am or so.

Take a look at our Past through our Year in Review pages

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