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Aspen Backcountry Marathon

Aspen, United States • 1 Aug 2026

Aspen Backcountry - August 1, 2026

The Aspen Backcountry race will take place in Aspen, Colorado on August 1, 2026. The event is hosted next to the Duck Derby fundraising event held annually by the Rotary Club Aspen. The race course offerings include a 50 kilometer distance in addition to a marathon and a "heavy half" marathon.

Distances and entry requirements

  • 50 Kilometer
  • Marathon
  • Heavy Half Marathon

The event location is listed as N Mill St and Rio Grande Place, Aspen, CO. Registration opens on October 15, 2025 at 12:00 AM MT. Pitkin County requires each participant to have a valid Colorado Outdoor Recreation Search and Rescue (CORSAR) card for the day of the event; the card must be presented at packet pickup to receive a bib. A Colorado hunting or fishing license is accepted in place of the CORSAR card. The CORSAR card is offered for $5.00 for one year and $20.00 for five years. Visit the organization's website for the most recent information.

United States Colorado Aspen

Race information

Website Registration
50 km
50 Kilometer
42 km
Marathon
21 km
Heavy Half Marathon
Visit the organization's website for the most recent information.
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