Iditarod: Toughest Race on Earth Iditarod: Toughest Race on Earth Iditarod: Toughest Race on Earth was a 2008 American reality television miniseries on the Discovery Channel that featured the 2008 Iditarod Trail Sled Dog Race from Anchorage to Nome, Alaska. The show follows and documents selected racers and their dogs during the trek through Alaska's wilderness. Iditarod entrants pay $3,000 to enter the race and must have completed certain qualifying races beforehand. Expenses for the race can exceed $20,000 and mushers often seek sponsors to aide in paying for the race. Most mushers hold outside jobs in addition to racing. During the course of the
Iron Dog 10th annual race in 1994. The race route now follows parts of the Iditarod Trail, the route of the Iditarod Trail Sled Dog Race. It starts at Big Lake and follows the main trail and its connecting trails until it hits to the Yukon River at Ruby. It follows the river to Kaltag before it heads to the Norton Sound on the Bering Sea at Unalakleet and it follows the coast to Nome. Then it returns along the same path in the reverse order to Ruby, where it diverges off its original path by following the Yukon River and its