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
Iditarod Trail Sled Dog Race spruce log with two distinct burls similar but not identical to the old arch. While the old arch spelled out "End of Iditarod Dog Race", the new arch has an additional word: "End of Iditarod Sled Dog Race". A "Widow's Lamp" is lit and remains hanging on the arch until the last competitor crosses the finish line. The tradition is based on the kerosene lamp lit and hung outside a roadhouse, when a musher carrying goods or mail was en route. The last musher to complete the Iditarod is referred to as the "Red Lantern". On the way to the