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Built on bad decisions in Boulder, CO.

Aspen Backcountry

3 Race EventsHalf Marathon, 50K, Marathon

Aravaipa Running

Aspen, Colorado, United States

Course map for Aspen Backcountry 50K

Aspen Backcountry 50K

Aug 1, 2026

50K

Course map for Aspen Backcountry Heavy Half Marathon

Aspen Backcountry Heavy Half Marathon

Aug 1, 2026

Half Marathon

Course map for Aspen Backcountry Marathon

Aspen Backcountry Marathon

Aug 1, 2026

Marathon