Latest News

31 Jan

Sierra Buttes Trail Stewardship Impact Report 2017

2017 Was a Hell of Year! Check out what we did in 2017, who we worked with, who we are reaching, our financial health and our look to the future. Believe in...
17 Jan

Mills Peak Finished: Old Wobbly, Falconer and Local Volunteers for the Win

Callused hands, burnt shoulders, fatigued backs and yet the SBTS crew builds on into the winter. To say that trail building beats up the body is an...
18 Oct

Public Comments Needed for New Lost Sierra Trails

The communities of Portola and Gold Mountain near Nakoma Resort could soon be joined in Phase 1 of the Mohawk Rim Trail which is part of the Trail Master Plan...
3 Oct

Downieville Downhill Now Boasts 7,000 Vertical Feet of Descending

Nine new miles of singletrack highlighted by access to old Pacific Crest Trail alignment The Lost Sierra region that includes the notorious Downieville...


Miles of New Trail Built


Miles of Trail Maintained


Trail Volunteers Hours



Upcoming Events

Apr 27 - Apr 29 / 7am- 2pm Quincy, CA

Quincy Mountain Epic – April 27-29

Join SBTS on April 27th-29th in celebration of our Spring Epic Weekend in Quincy, where all the food and beer is covered for our beloved SBTS Members! The...
May 19 / 8AM - 3PM Graeagle, CA

Mills Peak Trail Daze – May 19

Come help Sierra Buttes Trail Stewardship dig the new Mills Peak Extension! Where: Meet at the corner of Gold Lakes Highway and CA-89. We will be on the...
Jun 2 / 6:30 AM - 3:00 PM Lake Davis, CA - The Lost Sierra

Lost and Found Gravel Grinder: June 2, 2018

30 mile, 60 mile and 100 mile epicly beautiful bike ride. A perfect blend of pavement, dirt road, gravel road and historic railroad grade. The route is 100...
Jun 30 / 8am - 3pm Downieville, CA

Downieville Trail Daze – June 30

Project Overview Downieville Divides trails and possibly the North Yuba Trail. Anyone can help out and no experience is required. This Trailwork day is...
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Become a volunteer

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Volunteer at a Trail Daze or one of our races. Contact us if you would like to volunteer other skills or services.

3 Ways to Get Involved

Join our tribe, do good work and have a load of fun, our members provide a crucial backbone to our organization.

Ride with Us

Since 1991, Yuba Expeditions has been shuttling riders on adventures in Downieville.

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Attend an Event

Attend our next Trail Daze, Mountain Epic, the Downieville Classic, Grinduro or Lost and Found.

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Join Our Tribe

Join today as a Core or Annual Member to support trails and access our exclusive membership perks.

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