Adventurers wanting to ski the Iditarod Trail generally need to follow the trail set each winter by the Iditarod Dog-sled Race. In even years that is a Northern Route, in odd years it is normally a Southern route, and in low-snow or warm winters it is a route starting in or near Fairbanks (the "Serum Route"). This map has a general outline of the three routes (Note, In 2003 the skiers started in Nenana and did not take the detour to Shageluk that the mushers took--they went straight from Kaltag to Unalakleet). There may be other variations from year-to-year based on conditions each winter.
