Explore Mato Grosso Mato Grosso do Sul The Pantanal Mato Grosso state Share The southern gateway into the Amazon, CUIABÁ has always been firmly on the edge of Brazil’s wilderness. Following the discovery of a gold field here in 1719 (one version of the town’s name means the “river of stars”), the town mushroomed as an administrative and service centre in the middle of Indian territory, thousands of very slow, overland miles from any other Portuguese settlement. To the south lay the Pantanal and the dreaded Paiaguá people who frequently ambushed convoys of boats transporting Cuiabá gold by river to São Paulo. The fierce Bororo tribe, who dominated Mato Grosso east of Cuiabá, also regularly attacked many of the mining settlements. Northwest along a high hilly ridge – the Chapada dos Parecis, which now carries BR-364 to Porto Velho – lived the peaceful Parecis people, farmers in the watershed between the Amazon and the Pantanal. By the 1780s, however, most Indians within these groups had been either eliminated or transformed into allies: the Parecis were needed as slave labour for the mines; the Bororo either retreated into the forest or joined the Portuguese as mercenaries and Indian hunters; while the Paiaguá fared worst of all, almost completely wiped out by cannon and musket during a succession of punitive expeditions from Cuiabá.