Burney Mountain 100
A Journey Through Lassen National Forest and the Thousand Lakes Wilderness
The Burney Mountain 100 is Northern California’s most scenic and immersive 100‑mile experience—one unforgettable loop through Lassen National Forest, the Burney Basin, and the rugged Thousand Lakes Wilderness. Starting and finishing at the Burney Mountain Guest Ranch, runners travel through some of the most pristine and remote landscapes in the region, surrounded by volcanic peaks, deep forests, and sweeping high‑country vistas.
Course Options Based on Snowmelt
Because this race takes place in true mountain terrain, the final route depends on seasonal snow conditions. Four possible course variations—Course A, B, C, and D—allow flexibility while preserving the spirit and challenge of the event.
Course A is the only version that fully summits Magee Peak. It is a rare treat, available only in low‑snow years when the high country is safely accessible.
Courses B, C, and D adjust the upper‑elevation sections depending on how much snow remains and how high we can safely get runners.
Regardless of the year, each course maintains the same overall character: remote, wild, and breathtaking.
Elevation, Terrain & Scenery
With approximately 15,000 feet of cumulative climbing, the Burney Mountain 100 delivers a powerful mix of challenge and beauty. From the flanks of Burney Mountain, runners take in panoramic views of Mount Lassen, Mount Shasta, the Hat Creek Rim, and the vast volcanic landscapes that define this region.
The terrain shifts constantly—rocky ridgelines, soft forest floor, open high‑country slopes, and deep wilderness singletrack—creating a dynamic and engaging journey from start to finish.
A Dawn Start for Maximum Beauty
The 4:30 am start gives runners the chance to experience the mountains waking up. Dawn light spills across the forests, lakes, and volcanic peaks, offering some of the most memorable moments of the entire race.
A Celebration of Northern California’s Wildest Places
This race is more than a test of endurance—it’s a full immersion into one of the most awe‑inspiring landscapes in the West. Whether you’re weaving through dense forest or climbing above the tree line, every mile pulls you deeper into the heart of Northern California’s volcanic wilderness.
Trail Work & Volunteer Requirement
Beginning in 2027, all Burney Mountain 100 runners must complete:
8 hours of trail work, or
12 hours of race volunteer service
Full details, submission instructions, and deadlines are available in the Runner’s Guide.
You MUST read the runners guide.
Runners must have the GPX file downloaded on your watch or phone.
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. All Intermountain Endurance runs are cup less races. Please be prepared with your own reusable cup.
The runners guide has essential information.
Trail Work
Trail Work & Volunteer Requirement
Beginning in 2027, all Burney Mountain 100 runners must complete:
8 hours of trail work, or
12 hours of race volunteer service
Full details, submission instructions, and deadlines are available in the Runner’s Guide.
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: 2:57 PM PT
