The Mattaponi River is a tributary of the Pamunkey River located in Virginia, USA. It flows approximately 70 miles through King William County and King and Queen County, eventually joining the Pamunkey River to form the York River. The river is known for its scenic beauty and rich natural habitat. The Mattaponi River is significant to the local Mattaponi Tribe, who have lived in the area for centuries. The river supports various wildlife and is a popular spot for recreational activities such as fishing, kayaking, and canoeing, attracting both locals and visitors alike.