The Paranaíba river is the most important source of the Paraná river, her source lies in the serra (mountains) of Mata da Corda, municipality "Rio Paranaiba" (Mato Grosso) at a height of . On the other side of these serra is the source of the Abaete, a tributary of the São Francisco. The confluence of the Paranaíba with the Grande river is situated about from the source of the Paranaíba. At the unison there is a bridge that is also a border point between three states: São Paulo, Minas Gerais and Mato Grosso do Sul. The Paranaíba river is famous for the rich diamond deposits of her tributaries and her huge hydroelectric potential.