The Itaquai River is a river of the upper Amazon Basin. It forms the eastern boundary of Atalaia do Norte municipality in the Amazonas state of north-western Brazil. Its main tributary is the Rio Branco. Downstream it joins the Ituí River to form the upper Solimões.
Map of Rio Itaqua%C3%AD, State of Amazonas, Brazil
References
Itaquai River Wikipedia(Text) CC BY-SA