Burney Mountain 100

The Burney Mountain 100-Mile Endurance Run
A Journey Through Lassen National Forest and the Thousand Lakes Wilderness

Experience Northern California’s most scenic 100-mile race, where breathtaking views, diverse terrain, and awe-inspiring vistas await at every turn. Starting and finishing at the Burney Mountain Guest Ranch, this looped course takes runners through some of the most pristine wilderness areas in the region, including the stunning Burney Basin and the rugged Thousand Lakes Wilderness.

The race climbs and descends a cumulative 15,000 feet of elevation, providing an exhilarating challenge for ultrarunners. From the peaks of Burney Mountain, you’ll be treated to panoramic views of Mount Lassen and Mount Shasta, as well as the Hat Creek Rim and vast lava flows stretching below.

The early start time of 4:30 am allows runners to fully absorb the beauty of the area at dawn, when the mountains, forests, and lakes are bathed in soft morning light. The varied terrain—ranging from rocky ridgelines to lush forest floor—provides an ever-changing backdrop as you tackle the rugged landscape.

This 100-mile race isn't just a test of endurance, but also a celebration of the incredible natural beauty of Northern California. Whether you’re running through dense forests or above the tree line, each mile will take you deeper into the heart of one of the most awe-inspiring landscapes in the country.


*2026 Trail work is not yet a requirement for Burney Mountain 100. In 2027 It will become a requirement to participate in the race. However, there is going to be an incentive for any participant that does complete 8 hrs. of trail work before the 2026 Burney Mountain 100 this year*

Course Map

See website for the link to the GPX file

Runner's Guide

Visit our website for the link to the runner's guide. This guide has aid station, drop bag, crew, and pacer information and more.

Trail Work

Trail work is not required for the 2026 race.
Beginning in 2027, 8 hours of trail work will be required to participate.

2026 Incentive:
Any 2026 participant who completes 8 hours of trail work before race day will receive a special incentive (details announced soon).

Camping

Camping at Burney Mountain Guest Ranch
All runners and crew receive free dry camping on Thursday, Friday, and Saturday nights—covered by Intermountain Endurance.

If you’d like to upgrade your stay, the ranch offers multiple lodging options, and all runners receive a $25 discount on upgrades.

Explore lodging options here:
https://burneymountain.com

Amenities include:

Restaurant

Saltwater pool

Laundry

Cornhole

Nearby attractions:
Burney Falls, Lava Tunnel, Lassen National Park, Chalk Cave, Hat Creek, Pit River, Baum Lake, Lake Britton, and more—an incredible destination for a race‑cation.

Deferral policy

Deferral & Refund Policy
No Refunds — No Exceptions
All race entries are non‑refundable, non‑cancellable, and non‑eligible for partial refunds under any circumstances. This includes—but is not limited to—injury, illness, scheduling conflicts, travel issues, or personal emergencies.

Generous Deferral & Transfer Options
To support our runners, we offer flexible alternatives:

Deferrals:
You may defer your race entry for any reason up to one week before race day.

Transfers:
You may transfer your registration to another runner up to one day before race start.

These policies allow us to maintain event quality and keep the race sustainable while still giving runners meaningful options.

Event's current local time: 5:43 AM PT