Petrolina is a city in the São Francisco Valley (Vale do São Francisco), in the southernmost point of the state of Pernambuco, in Brazil. With over 340,000 inhabitants (2017), it is one of the largest cities of the Northeast's Sertão, a mostly semi-arid and sparsely populated region. However, Petrolina stands as the major city and business center of the São Francisco Valley, a fertile area thanks to the irrigation from the São Francisco river. It is a major exporter of fruits and a growing enotourism destination.
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