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Burney Mountain 100

Name: Burney Mountain 100
Start: 2026-06-19
End: 2026-06-19
Location: Burney

Burney, United States • 19 Jun 2026

Burney Mountain 100 is a 100-mile ultramarathon held in Cassel, California. The looped course starts and finishes at Burney Mountain Guest Ranch, traversing Lassen National Forest and the Thousand Lakes Wilderness for about 100 miles with roughly 15,000 feet of total elevation gain. Runners enjoy dramatic vistas of Mount Lassen, Mount Shasta, and surrounding lava flows along the way.

The event offers dry camping for runners and crew at the ranch, with upgrade options and a post-race meal. A runner’s guide details aid stations, drop bags, pacing, and other logistics. Participants enjoy a wilderness-centric experience in Northern California. Visit the organization's website for the most recent information.

United States California Burney

Race information

Website Registration

100 mi

15000 m+

100 Miler

Visit the organization's website for the most recent information.

Trail runs nearby

Thursday Oct 23

Weekend at Burney

Backyard Ultra

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Weekend at Burney is a trail-running event in Lassen National Forest near Burney, California (22800 Guest Ranch Rd, Cassel). The race centers on a scenic, looped course that can be run as a 4.6-mile loop or a 13.8-mile option, with additional 24- and 48-hour timed formats and burro-race variants. Th..