Burney Mountain 100

JUN
19
2026
Tackle the Burney Mountain 100, a 100 mile loop through Lassen National Forest with about 15,000 feet of climb. Start and finish at Burney Mountain Guest Ranch and soak up sweeping views of Mount Lassen and Mount Shasta.
Fri 19 Jun 2026
100 miles

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Event overview

The Burney Mountain 100 is a 100-mile endurance run held in Cassel, California. The looped course starts and finishes at Burney Mountain Guest Ranch and runs through Lassen National Forest, the Thousand Lakes Wilderness, and the Burney Basin. The route includes a cumulative climb and descent of about 15,000 feet. Noted viewpoints along the course include Mount Lassen, Mount Shasta, the Hat Creek Rim, and surrounding lava flows. Course maps are provided on Gaia and Caltopo.

Course and logistics

The terrain varies from rocky ridgelines to forest floor and sections above the tree line. A runner's guide covers aid station, drop bag, crew, and pacer information. Dry camping for runners and crew is provided at Burney Mountain Guest Ranch for the Thursday, Friday, and Saturday nights before the event, with that cost covered by the organizer. Ranch accommodation upgrades are available with a $25 discount for runners. Ranch amenities listed include a restaurant, salt water pool, laundry, and cornhole.

A post-race meal is provided for runners; the ranch restaurant will be open for crew and pacers. The event policy states there are no refunds, but registration may be deferred for any reason up to one week before race day, and registrations may be transferred up to one day before the race. Registration closes Tue, Jun 16 at 11:59 PM PT. Visit the organization's website for the most recent information.

100 mi
100 Miler