Castor River (Missouri)

The Castor River rises in southeastern Missouri near Fredericktown. The river flows south to Bollinger County and empties into the Headwater Diversion Channel, which flows into the Mississippi River just south of Cape Girardeau. The river below the Diversion Channel flows south until it reaches Saint George Bayou where both streams combine to form the Little River.

Map of Castor River, Missouri, USA

Castor is a name derived from French meaning "beaver".