The most challenging race you've never run...because it's NEW! Utilizing the amazing trails that surround Aspen, this full marathon is run almost exclusively on dirt trails. The diversity and elevation gain will challenge even the well trained athlete. The race is open to individuals and relay teams.

Aspen Backcountry Marathon

Post-Race Review/ Results

Marshall Thomson won the second annual Aspen Backcountry Marathon with a time of 3 hours 42 minutes and 22 seconds.

Aspen Backcountry Marathon Test Mountain Endurance Athletes

Human Interest Story

Registration for the Aspen Backcountry Trail Marathon opens on Tuesday for the August 26 race events

Marathon Summary

Marathon Results