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Latest News

26 Dec

Fall Trailwork Report

The new Indian Falls Ridge Loop Trail November has kept the crew really busy on the trail. We finally completed the construction and maintenance of the...
19 Dec

Yuba Expeditions Donates $12,835 to Sierra Frontier Medical Resources

Downieville Fire Ambulance. Photo Credit Mary Davey If you rode a Yuba Expeditions shuttle in 2018, you were part of something very special – helping fund...
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...


Miles of New Trail Built


Miles of Trail Maintained


Trail Volunteers Hours



Upcoming Events

Apr 19 - Apr 21 / 7am - 2pm Quincy, CA

Quincy Mountain Epic – April 19-21

Join SBTS on April 19th-21st in celebration of our Spring Epic Weekend in Quincy, where all the food and beer is covered for our beloved SBTS Members! The...
May 18 / 8AM - 3PM Graeagle, CA

Nelson Creek Trail Daze – May 18

We will be working the Nelson Creek Trail, details will be posted when we have them. Questions? Contact Mandy at...
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...
Jun 15 / 8am - 3pm Downieville, CA

Downieville Trail Daze – June 15

Project Overview Come help Sierra Buttes Trail Stewardship on the new Downieville Classic XC route! This trail is on the Sierra Crest and 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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