Photo by Margaret Harings

Endurance North is a 501(c)(3) non-profit established to promote long distance endurance sports throughout

Alaska and the Interior.

Racing across Interior Alaska On foot, Bike, or Skis

  • A frosty runner on a downhill slope

    Chena River to Ridge

    March 1, 2025

    A challenging race course with big ascents, fast downhills, blind turns, and outstanding views of the local hills and the Alaska Range as the trail climbs high above the valley floor.

    26 and 55 mile options

  • Racers travel on a snowy riverbed

    Tanana River Challenge

    March 15, 2025

    An exciting dash over the wide-open trails of the Tanana River and the scenic hills of Rosie Creek. This race also includes a skijor division.

    25 and 45 mile options

  • Cyclists pass through overflow

    White Mountains 100

    March 23-24, 2025

    A spectacular century that cuts a loop through the rugged heart of the BLM White Mountains National Recreation area, featuring arduous climbs, screaming descents, and some of the most sublime vistas Interior Alaska has to offer.

    100 Mile distance