The Iditarod River is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in western Alaska

Alaska

Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

. The river begins north of Chuathbaluk

Chuathbaluk, Alaska

Chuathbaluk is a city in Bethel Census Area, Alaska, United States. At the 2000 census the population was 119.-Geography:Chuathbaluk is located at ....

 and flows 325 miles (523 km) northeast and then west to the Innoko River

Innoko River

The Innoko River is a river in western Alaska. It flows north from its origin south of Cloudy Mountain in the Kuskoswim Mountains and then flows southwest to its end at the Yukon River, across from Holy Cross, Alaska....

, and ultimately into the Yukon River

Yukon River

The Yukon River is a major watercourse of northwestern North America. The source of the river is located in British Columbia, Canada. The next portion lies in, and gives its name to Yukon Territory. The lower half of the river lies in the U.S. state of Alaska. The river is long and empties into...

.

Iditarod is an Anglicization of the Ingalik Athabascan name for the river, Haiditirod or Haidilatna, which is probably an English version of the name of a village on the river, that may have corresponded with the village called Iditarod

Iditarod, Alaska

Iditarod is an abandoned town in the Yukon-Koyukuk Census Area in the U.S. state of Alaska.- Geography :It is on a horseshoe lake that was once a bend in the Iditarod River, northwest of Flat, ultimately flowing into the Yukon river.- History :...

in the 1900s.