Republican River

Water type: River
Continent: North America
Climate: Temperate

The Republican River is a river in the central Great Plains of North America, rising in the High Plains of eastern Colorado and flowing east 453 miles (729 km) through the U.S. states of Nebraska and Kansas.

The Republican River is formed by the confluence of the North Fork Republican River and the Arikaree River just north of Haigler in Dundy County, Nebraska. It joins with the South Fork Republican River immediately southeast of Benkelman, Nebraska. All three tributaries originate in the High Plains of northeastern Colorado.

From the confluence, the river flows generally eastward along the southern border of Nebraska, passing through Swanson Reservoir and Harlan County Reservoir before curving southward into the Smoky Hills region of Kansas.

The Republican River joins the Smoky Hill River at Junction City, Kansas to form the Kansas River.

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