Iditarod Trail Sled Dog Race early in the 20th century. The main route of the Iditarod trail extends from Seward in the south to Nome in the northwest, and was first surveyed by Walter Goodwin in 1908, and then cleared and marked by the Alaska Road Commission in 1911 and 1912. The entire network of branching paths covers a total of . Except for the start in Anchorage, the modern race follows parts of the historic trail. The trail is composed of two routes: a northern route, which is run on even-numbered years, and a southern route, which is run on odd-numbered years. Both follow
2005 Iditarod the team of 12 dogs, each dog sled also carried a family member or friend, and an "Idita-Rider". The Idita-Riders seats were auctioned off in January, and raised a total of US$140,021, with an average bid of US$1,918.09. The auction was held entirely online for the first time in 2005. The teams passed through of city streets lined with an estimated 100,000 people. The temperature was . Due to the warm weather and poor trail conditions, the first leg of the race was shortened by the Iditarod Trail Committee on February 27, and ended at Campbell Airstrip from Anchorage, instead