The longest rivers in the state are the Jari, the Oiapoque, and the Araguai, which flow straight towards the Atlantic Ocean. The head of the State Executive Branch is the governor, elected by direct vote for a four-year term.
Main crops grown in the state are cashew-nut, palm heart and timber.
Among the predominant minerals are manganese, gold, kaolin, and granite. The state s agricultural production is restricted to rice and cassava. Main livestock activities comprise buffalo and cattle raising. Between January of 1993 and July of 1994, the state produced 451 million kwh for a local consumption of 220 million kwh. At the end of the same century, the region was invaded by the English and the Dutch, who ended up expelled by the Portuguese.