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Latest News

14 Feb

25th Annual Downieville Classic Registration Opens February 17 at 8PM PST

Bar ends, V-brakes, three front chainrings and sub-par suspension with 80 millimeters of rubber elastomer travel; this was the mountain bike technology of the...
28 Jan

Sierra Buttes Trail Stewardship is applying for CA OHV Grants

Sierra Buttes Trail Stewardship is applying to CA OHV to perform maintenance on the Downieville Trail System. For more information on this project head...
20 Jan

Lost and Found Gravel Grinder Registration Opens January 20

One of America's top gravel events expands for 2020 Celebrating its seventh anniversary of taking adventurous cycling souls through the remote and rugged...
29 Nov

SBTS Announces Mountains to Meadows

Sierra Buttes Trail Stewardship Announces Mountains to Meadows The “Original Gravel Enduro” expands with a new name and more good times with good...


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Upcoming Events

Jun 20 / 8:30am - 5pm Downieville, CA

Downieville Trail Daze – June 20, 2020

Due to Coronavirus concerns and following Plumas County Health recommendations, this event has been canceled. 🙁 Project Overview: Take Dad out for...
Jul 30 - Aug 2 / early - late! Downieville, CA

Downieville Classic Mountain Bike Race – July 30th – Aug 2nd, 2020

The Downieville Classic has been canceled, see our statement on the cancelation. All Mountain World Championships Cross Country Adventure Race...
Sep 21 - Sep 27 / early -> late! Quincy, CA - The Lost Sierra

Mountains to Meadows

Due to Coronavirus concerns and following Plumas County Health recommendations, this event has been canceled. We hope to reschedule for September 2021. A New...

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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We promise not to spam you, we just want to pass on the building trails stoke and enjoying the Lost Sierra.