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Trail Running Calendar near Aspen 2026-2027

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Explore the top trail runs near Aspen for 2026-2027! We've gathered 13 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

December 2026
Nighttime uphill race and gondola ride to the Aspen Mountain summit with fundraising, a post summit party, and a virtual option.
January 2027
A downtown Crested Butte nordic ski event on January 30, 2027 featuring multiple distances, a costume contest, prize purses, and a community skiathlon the following day.
February 2027
A Nordic ski event circling Gothic Mountain with competitive and recreational distances, limited to 200 racers and held as a fundraiser for Crested Butte Nordic.
June 2027
A three-day Leadville camp in June 2027 that guides runners over key sections of the Leadville Trail 100 Run with day and night group runs and course briefings.
Trail marathon of 26.4 miles and a 15.4 mile Heavy Half that climb to Mosquito Pass at 13,185 feet with marked aid stations and shuttle parking.
July 2027
High altitude 50 mile trail run in Leadville on July 10, 2027 with about 8,000 feet of elevation gain; registration opens January 7, 2027.
A Crested Butte trail event with 15 km and 25 km run options plus a technical 25 km mountain bike race, featuring alpine climbs and a Green Lake turnaround.
A three day fully supported trail stage race in Leadville, Colorado, offering Full Pint (51 miles) and Half Pint distances.
Trail races in Aspen on July 31, 2027 offering 50K, marathon and heavy half-marathon on mostly dirt trails with substantial elevation and limited aid.
August 2027
Leadville Trail 10K Run on August 15, 2027 in Leadville CO is a 10 km out and back that uses the first and final 3.1 miles of the LT100 Run course with one aid station.
Historic 100 mile out and back trail race in Leadville on August 21, 2027 with high alpine terrain, Hope Pass, and a lottery Dec 1–15, 2026.
September 2027
A 40-mile point-to-point ultramarathon from Crested Butte to Aspen across the Elk Mountains with 6,000+ feet of climbing, mandatory gear, aid stations, and mandatory tracking.
Trail ultramarathon in Crested Butte, Colorado on September 25, 2027 with 50-mile, 55K, and 35K options through Gunnison National Forest.
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