Trail Running calendar near Chico 2025-2026

Take on a scenic 100 mile trail challenge near Cool, California featuring looped singletrack and fire roads with about 13,600 ft of climbing. Live tracking, regular aid and a handcrafted buckle await finishers.

Run the scenic Susan River Canyon at Bizz Johnson's Southside Scramble, with 22K, 14K or 7K loop options along singletrack and river views. A small field capped at 150, custom finisher medals and microfiber towels make for a relaxed, reward..

Run the rugged Sierra singletrack in the Lost Sierra Endurance Race in Downieville on July 25, 2026, with 25K, 50K, and 100K options to challenge every level. Celebrate with fellow runners at a friendly post race gathering in town.

Tackle rugged single track trails and steep climbs at Mammoth Bar in Auburn, California, with sweeping views of the American River Canyon. Choose a half marathon or 10K and test your trail legs at this scenic, challenging outing.

Run scenic shoreline and single track trails at Granite Beach for the Gold Rush Growler, with new 2026 courses and options of 10 miles or a 5K. Every finisher gets a beer glass and a cold local IPA for ages 21 and over.

Tackle rugged singletrack and rocky climbs near Emigrant Gap at the Signal Peak Trail Runs on October 3, 2026, with 50K and 24 mile options. Expect technical terrain and a summit loop that rewards 50K runners with sweeping views of Bear Val..

Run scenic single track along the American River Canyon in Auburn, CA with 50K, half marathon, or 5 mile routes. Celebrate afterward at Ponderosa Cider Co with a commemorative cider glass and post race pours.

Euchre Bar Massacre is a fatass style adventure run along the Wild and Scenic North Fork of the American River. Choose 25 or 50 miles, expect remote support, big climbing and rugged riverside trails for a raw endurance challenge.

Join the inaugural Champion Mine Trail Race in Nevada City for a scenic half marathon or 5K through pines, along Deer Creek, and across a historic swinging bridge. Enjoy stocked aid stations and a locally made finisher medal.

Run the historic Bizz Johnson Trail in Susanville CA on Oct 11 2026, with races from 50K to 10K finishing at Hobo Camp. Scenic rail trail through Lassen National Forest with river bridges, tunnels and a net downhill; marathon is Boston qual..

Join the Heart of Cool Trail Run in Cool CA for 5k, 10k or trail half marathon on scenic singletrack. Proceeds benefit local youth programs and a scholarship for a child with heart disease; enjoy a post race pancake breakfast.

Scenic Upper Bidwell Park hosts a half marathon with a tough early climb and a downhill finish, plus a 4 mile endurance loop with repeating laps. Aid stations, creek crossings and community fundraising add local flavor.

Join the 25th Rio 100 and 5th Rio 50K at Beals Point in Granite Bay on November 7 and 8, 2026. Scenic Folsom Lake and Johnny Cash Trail routes, strong on course support, and festive food and beer create an unforgettable endurance weekend.