The Pacajá River (Portuguese: Rio Pacajá) is a river of Pará state in north-central Brazil.It is a tributary of the Pará River, a channel that connects the Amazon and Tocantins rivers to the south of Marajó island.
The basin of the Pacajá River is in the Xingu–Tocantins–Araguaia moist forests ecoregion.
The Pará River (Portuguese: Rio Pará), also called Parauaú River, Jacaré Grande River, Marajó River Channel, Macacos River Channel, Santa Maria River Channel and Bocas Bay, is a watercourse and immense estuarine complex that functions as a canal between the rivers Amazon (Amazon delta), Tocantins, Campina Grande (or Portel Bay) and Marajó Bay, in addition to numerous other smaller rivers. It can also be considered a distributary channel of the Tocantins River.
It is located in the state of Pará, Brazil. It presents muddy and turbid waters, rich in sediments originating from its source rivers.
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