Piratinin

Piratinin lies in the river country of southern Rio Grande do Sul, near the Piratini basin and the Serra dos Tapes. Streams descend through wooded hills towards the lowlands and the Patos Lagoon. The wider district was a frontier between Portuguese and Spanish claims in the eighteenth century. The town of Piratini, founded by Azorean settlers in 1789, later became the capital of the Rio-Grandense Republic during the rebellion of 1836.

The later city of Pelotas lies here.