On June 20, adventure-seeking cyclists will take on the rugged landscape of Harney County in the 2026 Skull Gravel Grinder – America’s gnarliest gravel race. The community-powered event features 30- and 60-mile routes that traverse open high desert, wind through rugged canyon terrain, and climb steep, forest-lined stretches. The challenging course offers riders an immersive experience in Eastern Oregon’s vast and varied landscape.
Known as the “emptiest place in the lower 48,” Harney County’s ruggedness and solitude are part of its appeal. The high desert landscape is remarkably diverse, ranging from sagebrush plains to glacier-carved canyons and alpine meadows. The Skull Gravel Grinder is designed to showcase the diverse beauty of the high desert while supporting the public lands and conservation areas that make Harney County unique.
First held in 2017, “the Skull” is a not-for-profit ride and race that is known as one of the country’s most challenging single-day gravel biking events. Beginning in Burns, the 30-, 60-, and 120-mile routes stretch across the Bureau of Land Management and U.S. Forest Service, and Burns Paiute tribal lands, offering riders a true backcountry test of grit and endurance.
America’s Gnarliest Gravel Race
In 2026, riders can choose between 30- and 60- mile routes, each offering a demanding route through Harney County's backcountry terrain. The shorter course is a challenging introduction to the Skull with more than 2,100 feet of elevation gain. The 60-mile course climbs more than 4,300 feet and takes riders deeper into the landscape for a serious test of stamina and grit. Both routes feature elements that have earned the Skull its reputation: long climbs and fast descents, alpine forests, stream crossings, and many cattle grates. (The traditional 120-mile route will not be offered in 2026 due to extensive fire damage in the Malheur National Forest.)
Same Grit, Less Grind
The 30-mile route offers a Class 1 e-bike option, giving more riders a chance to take on Harney’s high desert terrain.
The race ventures deep into the Harney County wilderness, but riders are thoughtfully supported along the way. Volunteers staff well-stocked aid stations, and clear course markings help participants stay on track. To ensure the safety of riders on such a remote course, an integrated safety and communications team includes licensed HAM operators at each aid station, along with an on-site ambulance and medical response team.
Ready to take on the Skull?
Registration is open through June 15 at 5 p.m. PT.
For the Love of the Land
The Skull celebrates Harney County’s unique beauty and encourages a deeper connection to the landscape that has sustained life here for generations. The race is a collaborative effort among the Harney County Chamber of Commerce, Bureau of Land Management, U.S. Forest Service, Oregon State Parks and Recreation, the Burns Paiute Tribe, local volunteers, and event sponsors–all united by a shared commitment to stewarding the land.
The race is a not-for-profit event. After event costs are covered, all additional proceeds are used to support resource stewardship and land conservation.
More to Explore
Still have miles in your legs? Harney County and the surrounding region offer plenty of scenic routes for cyclists who aren’t quite ready to hang up their helmets.
Steens Mountain Loop: Take in the expansive views of one of Harney County’s most iconic landscapes on this scenic, mixed-surface ride.
South Fork John Day-McClellan Mountain Route: Venture through river valleys, forested ridges, and remote backcountry, with an optional singletrack section.
Vinegar Hill – Indian Rock Route: Follow old mining roads through high-elevation terrain with big climbs and sweeping vistas.
Strawberry Mountains Scenic Road Tour: Enjoy a paved ride through valleys, rangeland, and mountain scenery.
Come Prepared
Burns does not have a full-service bike shop, so arrive with your bike race-ready and bring any supplies you may need for basic repairs.
See More of Harney County
Even the Skull’s longest miles only scratch the surface of Harney County’s vast landscape. Turn race day into a long weekend – or settle in for a full week – and give yourself time to experience more of the “emptiest place in the lower 48.”
Hot Springs Care for your sore muscles at one of the high desert’s famed natural hot springs. Our local’s guide can help you find the right spot to soak.
Fishing After the intensity of the Skull, you’ll welcome a relaxing day by the water. The Harney Basin is a patchwork of rivers, ponds and lakes with plenty of peaceful places to cast a line. Our Cast & Range itinerary highlights some of the best local fishing spots.
Stargazing When the sun goes down, be sure to look up! Harney County’s remote location makes for a breathtaking night sky. The Alvord Desert and Steens Mountain are favorite spots for stargazing, but even the back porch at your Air BnB can offer a spectacular view.
However you choose to spend your time in the high desert, explore with appreciation and care. The best way to experience Harney County is to help preserve its wild beauty.
Want Even More Inspiration?
Our Harney County itineraries offer suggestions for local places to stay, where to dine, and ways to wander in the high desert.
