largest estado (state) of Brazil, situated in the northwestern part of the country. It is bounded to the northwest by Colombia, to the north by Venezuela and the Brazilian state of Roraima, to the east and southeast by the Brazilian states of Para and Mato Grosso, to the south by the Brazilian state of Rondonia, to the southwest by the Brazilian state of Acre, and to the west by Peru. Despite its size, it is one of the most thinly populated Brazilian states. Amazonas occupies the greater part of the tropical forest zone of the Amazon River basin. The capital, Manaus, is located in the eastern part of the state at the confluence of the Negro River with the mainstream of the Amazon
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