The Pajeú River is a tributary of the São Francisco River in Pernambuco state of northeastern Brazil. A tributary is a Stream or River which flows into a mainstem (or parent river For other uses see São Francisco (disambiguation The São Francisco River is a river in Brazil with a length of 3160 kilometres Pernambuco (pɛxnɐ̃ˈbuku is a state of Brazil, located in the Northeast region of the country |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld The Pajeú originates on the Borborema Plateau, and flows southwest to join the São Francisco. The Borborema Plateau ( Portuguese Planalto da Borborema, also known as the Serra da Borborema) is a plateau in northeastern Brazil which extends