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Latest News

20 Nov

Five Kids Earn New Santa Cruz Chameleons

After winning Five Bucks a Foot, the annual Sierra Buttes Trail Stewardship fundraiser for trails, Michael Knighten of San Francisco was rewarded with his...
6 Nov

Local Champion Cyclist forms High School Mountain Bike Team

It's been a busy year on the bicycle for Quincy resident and high school science teacher, Dana Ludington. In addition to recently being crowned a Lost Sierra...
13 Oct

Getting to Know JoJo Donovan

If you've ever called Yuba Expeditions to book a shuttle or purchased something at the cash register, you've probably met JoJo Donovan. Always ready with a...
8 Oct

Thule Racks – Downieville Tough

Downieville Tough. It's a saying at Yuba Expeditions (our Sierra Buttes Trail Stewardship owned and operated bike shop) to describe a product that can...


Miles of New Trail Built


Miles of Trail Maintained


Trail Volunteers Hours



Upcoming Events

Jun 1 / 6:30 AM - 3:00 PM Lake Davis, CA - The Lost Sierra

Lost and Found Gravel Grinder: June 1, 2019

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...
Aug 1 - Aug 4 / early - late! Downieville, CA

Downieville Classic Mountain Bike Race – Aug 1-4, 2019

Come to prove yourself, or just come to have fun. All Mountain World Championships Cross Country Adventure Race Downieville Downhill Race...
Sep 28 / early -> late! Quincy, CA - The Lost Sierra

Grinduro – September 28, 2019

A New Kind of Bike Race Voted “Event of the Year” by the Design and Innovation Awards committee, the unique format of Grinduro combines the best elements...
Oct 13 / 8am - 5pm Graeagle, CA

Lakes Basin Trail Daze – October 13

Project Overview Volunteer workday project focus will be on the Lakes Basin trails. Volunteers will help the SBTS crew maintain Lakes Basin trails. The hike...

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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