Preto River (Araçuaí River tributary)

The Preto River (Rio Preto: Black River) is a river in the state of Minas Gerais, Brazil. It is a tributary of the Araçuaí River.

The Rio Preto was declared a "permanently protected river" in 1991 in response to demand from the local community. The Rio Preto State Park, which protects the river's sources, was created by decree 35.611 of 1 June 1994, with an area of 10755 ha.