menu account_circle

Arrowhead 135 mile Winter Ultramarathon

Quick facts

Distance Ultra marathon

About Arrowhead 135 mile Winter Ultramarathon

The 135 mile Arrowhead State Trail is a multipurpose, snowmobile, ski, hiking, mountain biking, sled dog, horseback riding and ATV trail extending from International Falls, MN to the intersection with the Hwy 77 on Lake Vermillion (near Tower).The Arrowhead 135 is a human powered Ultra Marathon taking place in the coldest part of winter in the coldest city in the lower 48 states. The race Mission is fostering national and international amateur endurance sports such as winter-biking, skiing and trail running. Racers were allowed to attempt the challenging 135-mile terrain on foot, bike or ski completely self-supported.


135 Miler

  • 217.2609km



AmericInn, Fortune Bay Resort and Casino, Oveson's Pelican Lake Resort and Inn, Voyageur Motel, Super 8 Motel, Days Inn

Aid Stations

There are only three checkpoints throughout the course as it is a self supported race.

Award Medals

Unique Finisher Trophy, Anyone finishing Arrowhead 135 3 years/3 Disciplines bike/run/ski eligible for unique "Arrowhead a'Trois Award. "Ernest Shackleton Endurance" Award recognizing the racer (must be official finisher) who remains on the course, making forward progress for the longest period of time.

Maximum Time

60 hrs


Street parking or big lot west side of Backus.


International Falls

International Falls,us


Fortune Bay Resort Casino

International Falls,us


The self-supported race follows the Arrowhead State Trail through the hilly, densely forested hinterlands of northern Minnesota, and the rules are relatively few: Racers can ski, run, or pedal with fat-tire snow bikes, and they must finish with 15 pounds (6.8 kilograms) of emergency gear and 3,000 calories of emergency food in the good old-fashioned spirit of Midwestern self-reliance.

The race information has been found on the official website of the event or through publicly available sources. Always refer to the official website the latest race information. Please let us know if any data is wrong or missing, by emailing us.