Pernambuco

Pernambuco is a state of Brazil, located in the Brazilian Northeast. To the north are the states of Paraíba and Ceará, to the west is Piauí, to the south are Alagoas and Bahia, and to the east is the Atlantic Ocean.Pernambuco comprises a comparatively narrow coastal zone, a high inland plateau, and an intermediate zone formed by the terraces and slopes between the two. Its surface is much broken by the remains of the ancient plateau which has been worn down by erosion, leaving escarpments and ranges of flat-topped mountains, called chapadas, capped in places by horizontal layers of sandstone. Ranges of these chapadas form the boundary lines with three states–the Serra dos Irmaos and Serra Vermelha with Piauí, the Serra do Araripe with Ceará, and the Serra dos Cariris Velhos with Paraíba.