Tocantins River

river in Brazil
Map of the Araguaia/Tocantins Watershed

The Tocantins River is a river that flows through the northeastern part of Brazil. It rises in the district with a lot of mountains known as the Pireneus. These can be found to the west of the Federal District. Its western tributary, the Araguaia River, has headwaters very far south on the slopes of the Serra dos Caiapós.