Skip to main content

The Shedhorn

In this world-class endurance race, you'll work against gravity and come away knowing you completed the toughest skimo race course in the country. Summiting Lone Peak from two different approaches, this course takes you up alpine climbs with exposure over cliffs and avalanche paths, 50º+ bootpacks, and down some of Big Sky's steepest descents, including the Big Couloir. This is a technical ski mountaineering race and should only be attempted by experienced athletes.

Route Map

Shedhorn Stats

16 miles

8,000 vertical feet

Max elevation 11,166 feet above sea level

Four alpine climbs: Alto Ridge, Parachute, Headwaters Ridge, and Hanging Valley

Four alpine descents: Big Couloir, First Fork, Kastle Rock, and Liberty Bowl

Aid Stations: Lone Peak Summit, top of Challenger, Shedhorn Grill

Start Time: 8:00 AM

Cutoff Time: 2:00 PM at Shedhorn Grill (prior to Hanging Valley climb)

Estimated First Place Finisher time: 11:30 AM

Compete for your shot at an epic prize haul from our incredible sponsors. Prizes include the brand-new GoPro Hero 13, POMOCA ski skins for ultimate uphill efficiency, a Petzl climbing helmet for rugged ascents, and a ski backpack built for the backcountry. Plus, avalanche shovels to keep you prepared and gift cards for Scarpa boots, Scarpa running shoes, and Kinco gloves.

© Boyne Resorts 2025