Shedhorn Skimo
Take on your next challenge with Big Sky's classic ski mountaineering race. Test your athleticism in one of three courses from advanced to expert that climb and descend Lone Mountain.
The Shedhorn Skimo returns to Big Sky Resort on Saturday, March 7, 2026. Check back this winter for more information and registration.
Shedhorn Skimo Events
Choose from one of three courses, with difficulty ranging from skimo first-timer-friendly to one of the most challenging races in the country.
Shedhorn
Summiting Lone Peak twice and descending the classic Big Couloir, this route's ups and downs are sure to test even the most advanced athletes.
- 16 miles
- 8,000 vertical feet
- Four alpine climbs
- Four 45-degree+ descents
Pronghorn
Climbing to the top of Lone Peak, descending the Big Couloir, and then up and over the Headwaters Ridge, this shortened version of the Shedhorn is still a test of mountaineering feats.
- 7 miles
- 4,500 vertical feet
- Two alpine climbs
- Two 45-degree+ descents
Ramshorn
The Ramshorn route is a great way to test the waters of Skimo. This route incorporates a skin track, a bootpack, and a triple-black diamond descent.
- 5 miles
- 3,500 vertical feet
