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.