São Luis was founded in 1612 by Daniel de la Rivardière, a French officer commissioned by Henry IV of France to establish a colony in this vicinity.
[1] In 1644 the Dutch abandoned the island, when the Portuguese resumed possession, and held the city to the end of their colonial rule in Brazil.
Several agents have modeled relief such as those of climatic, hydrological and oceanographic origin, as well as intense wind, marine and fluvial activity, with vegetation characterized by remnants of the Amazonian Forest, Mangroves and Campo de Perizes, an extensive fluvial plain with predominantly herbaceous, located on the mainland.
[4] The climate is characterized as hot, semi-humid, tropical of equatorial zone, with two distinct seasons that go from damp (January to June) the drought (July to December), with average rainfall of 2,200 mm per year.
Also on the island are the Port of Alumar, the Port of Itaqui and the Ponta da Madeira, to which mainly iron, copper and bauxite extracted from Carajás are transported through the Carajás Railway, which also transports soy, fuel, pulp and other products.