Big Black River (Mississippi)

Big Black River is a river in the U.S. state of Mississippi and a tributary of the Mississippi River. Its origin is in Webster County near the town of Eupora in the north central part of the state. From there it flows in a generally southwest direction until it merges with the Mississippi River south of the city of Vicksburg. It is the major contributor to the Big Black River Basin. It forms the eastern border of Holmes County, the northern border of Choctaw County, and the northern border of Claiborne County.