Iditarod Trail Sled Dog Race mining towns shut down. The first major competition was the tremendously popular 1908 All-Alaska Sweepstakes (AAS), which was started by Allan "Scotty" Alexander Allan, and ran from Nome to Candle and back. The event introduced the first Siberian huskies to Alaska in 1910, where they quickly became the favored racing dog, replacing the Alaskan malamute and mongrels bred from imported huskies and other large breeds, like setters and pointers. In 1914, the Norwegian immigrant Leonhard Seppala first appeared, and went on to win the race in 1915, 1916, and 1917, before the race was discontinued in 1918 during World War
Iditarod Trail Sled Dog Race of supplies which are flown ahead to each checkpoint by the Iditarod Air Force. The gear includes food for the musher and the dogs, extra booties for the dogs, headlamps for night travel, batteries (for the lamps, music, or radios), tools and sled parts for repairs, and even lightweight sleds for the final dash to Nome. There are three mandatory rests that each team must take during the Iditarod: one 24-hour layover, to be taken at any checkpoint; one eight-hour layover, taken at any checkpoint on the Yukon River; and an eight-hour stop at White Mountain. In 1985, the race