The Arrowhead 135 is a yearly ultramarathon event which takes place in International Falls, Minnesota, United States.
Modes of transportation includes foot, ski or bicycle, and the race is held in late January or early February.
[5] Profits from the race go to the Special Operations Warrior Foundation Charity,[6] Together For Good and the Falls Hunger Coalition.
[7] The race gathered extra attention in 2014[14] and 2019 due to the polar vortex which caused extreme cold in the midwest those years.
[28] All those who complete the Tuscobia Winter Ultra (160 Mile), Arrowhead 135 and Actif Epica (any solo distance) in one season are allowed into the Order of the Hrimthurs.