Iditarod Trail Sled Dog Race differ by less than . The northern route first passes through Cripple, which is from Anchorage, and from Nome (ITC, "Northern"), making it the middlemost checkpoint. From Cripple, the route passes through Sulatna Crossing to Ruby, on the Yukon River. Ruby is another former gold-rush town which became an Athabaskan village. The southern route first passes through the ghost town of Iditarod, which is the alternate halfway mark, at from Anchorage, and from Nome (ITC, "Southern"). From Iditarod the route goes through the three neighboring Athabaskan villages of Shageluk, Anvik, Grayling, and then on to Eagle Island, Alaska. Ruby and
Alpirod no sponsor emerged. The Alpirod was a pioneer in the use of dog microchip identification, requiring it several years before the Yukon Quest or Iditarod made the process mandatory. The unofficial successor to the Alpirod is the AlpenTrail, a sled dog race in the Alps started by several of the Alpirod's organizers. Alpirod The Alpirod is a defunct sled dog stage race in Southern Europe. Its name comes from a combination of the Alps, where the race took place, and the Iditarod Trail Sled Dog Race, upon which the race was based. The competition consisted of a 14-day stage race