This challenging mountain trail run connects the four peaks of the Aspen Snowmass area—Aspen Mountain, Aspen Highlands, Buttermilk, and Snowmass—across some of Colorado's most demanding high-altitude terrain. The event attracts both elite athletes and recreational runners, with local ski bums regularly pushing visiting pros to their limits in the thin mountain air. Three distance options…
Recognized by Trail Runner Magazine as one of "America's 14 Most Scenic Races," this intimate half marathon caps at 750 runners and takes place at the peak of Colorado's fall color season in late September. The course showcases why it's considered one of the most beautiful trail races in the Rockies. Starting at 8,650 feet…
Last updated April 20, 2026 Event for 2027 not confirmed yet... The Audi Power Of Four Skimo 2027 race takes place in beautiful Aspen, Colorado, and is one of the leading ski-mountaineering races in the western hemisphere. The skimo event, organized by the Power of Four and Aspen Snowmass, is part of a Series which includes a…
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