Mattaponi River

General data
- Name: Mattaponi River
- Basin: Chesapeake Bay
- Water type: River
- Progression: York River (Virginia) -> Chesapeake Bay -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Description
The Mattaponi River is a 103-mile-long (166 km) tributary of the York River estuary in eastern Virginia in the United States. The Mattaponi River ultimately rises as four streams in Spotsylvania County, each of which is given a shorter piece of the Mattaponi’s name:
- The Mat River and the Ta River join in Spotsylvania County to form the Matta River;
- The Po River and the Ni River join in Caroline County to form the Poni River;
- The Matta River and the Poni River join in Caroline County to form the Mattaponi River.