Big Sioux River Article Index for
Big
Shopping
Sioux
Website Links For
Big
 

Information About

Big Sioux River




Its headwaters are in Pelican Lake in northeastern South Dakota , near the town of Watertown in the Coteau Des Prairies .

It flows roughly due south, through extreme eastern South Dakota and passes through the city of Sioux Falls . South of Sioux Falls, it forms the boundary between South Dakota and Iowa , before flowing into the Missouri at Sioux City, Iowa .

The river forms the falls that are the namesake for Sioux Falls. South of Sioux Falls, the river is largely unregulated and floods regularly.


SEE ALSO