South River (Mattaponi River)

The South River is a 16.9-mile-long (27.2 km) river in Caroline County in the U.S. state of Virginia. It is a tributary of the Mattaponi River.

Map of South River, Mattaponi, VA, USA

Rising at the boundary between Caroline County and Spotsylvania County, the South River flows east, passing under U.S. Route 1 and Interstate 95, joining the Mattaponi north of Milford. Via the Mattaponi and York rivers, the South River is part of the Chesapeake Bay watershed.