Latest News

4 Jun

Press release related to the 2018 Lost & Found Gravel Grinder

Portola, Calif. - It is with a heavy heart that the Sierra Buttes Trail Stewardship team announces that one of our tribe, a member of the Hammer Nutrition...
4 Jun

Win a Handmade Gravel Bike in the Builders for Builders Fundraiser

Bicycle frame building and trail building are as much forms of art as they are meant for adventure. The Sierra Buttes Trail Stewardship is honored to be the...
18 May

New Non-Profit Partnership with Klean Kanteen

The Sierra Buttes Trail Stewardship (SBTS) today announced a new non-profit partnership with Klean Kanteen, a Chico, Calf. based manufacturer of the original...
14 May

Peter Sagan rides the Historic Boca & Loyalton Trail

Photo above: Peter Sagan has some skills! (by: Craig Huffman/Bike Monkey) Two weekends ago the inaugural Sagan Dirt Fondo was held in Truckee, California....

79.7

Miles of New Trail Built

800

Miles of Trail Maintained

72,000

Trail Volunteers Hours

40

Employees

Upcoming Events

Jun 30 / 8am - 3pm Downieville, CA

Downieville Trail Daze – June 30

Project Overview Come help Sierra Buttes Trail Stewardship on the new Downieville Classic XC route! This trail is on the Sierra Crest and is...
Aug 2 - Aug 5 / early - late! Downieville, CA

Downieville Classic Mountain Bike Race – Aug 2-5, 2018

Come to prove yourself, or just come to have fun. All Mountain World Championships Cross Country Adventure Race Downieville Downhill Race...
Aug 24 - Aug 26 / 7am - 2pm Sunday Downieville, CA

Downieville Mountain Epic – August 24-26

A weekend of fun camping, riding and trailbuilding, August 24-26 . Join us for our Downieville Epic Weekend, where all the food and beer is covered for...
Sep 8 / 8am - 3pm Quincy, CA

Quincy Trail Daze – September 8

We are proud to partner with the Mount Hough Ranger District on this special project. The folks in this district understand the importance of more trails and...
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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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