Bike, run or ski 135 miles in extreme winter from "Frostbite Falls" on the Canadian border across the Arrowhead Region of Minnesota, USA.

Offers information on trail running, mountain bike racing and snow shoeing. The extreme racing events take place in the Rocky Mountains.

A new series of coastal races that will allow competitors to race within and explore remote coastal regions around the world. The inaugaral race is in Costa Rica in January 2005. Seven days, 250 kilometers. Take on the adventure in this new expedition run format. $20,000 in prize money

Covers development of this new extreme sport.

Urban Assault Races. The Amazingly Fun Bike Race Information, registration, dates.