Arikaree River, Plains river system in eastern Colorado, United States.
The Arikaree River is a river in eastern Colorado that flows east through open prairie before crossing into Nebraska and then Kansas. It runs shallow between low banks and moves through a flat, largely unpopulated stretch of grassland on the western edge of the Great Plains.
In 1868, a group of US Army scouts was surrounded and attacked by Cheyenne and Sioux warriors near the river in what became known as the Battle of Beecher Island. The fight lasted several days and is remembered as one of the last major clashes between the US military and the Cheyenne in Colorado.
The river takes its name from the Arikara people, a Native American group who lived across the northern Great Plains for generations. The name itself is the most visible trace of that presence in a landscape that otherwise shows little sign of human settlement.
The river runs through remote, open country with few facilities, so visitors should come prepared with water, food, and a good map. Water levels shift a lot between seasons, which affects what activities are possible along the banks.
A small fish called the Arkansas Darter lives in parts of the river and depends on the shallow, slow-moving water found here to survive. This species is rarely seen elsewhere, which makes the river one of the few places where it can be observed in its natural setting.
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