EntityQ7885257· pop 5· linked from 15 articlesUnini RiverSign in to saveriver in Amazonas, BrazilConnectionsAmazonasEntityBrazilCountryPortugueseEntitygeographic coordinate systemEntitydrainage basinEntityRio NegroEntityriver mouthEntityJaú National ParkEntityfederative unit of BrazilEntitylist of rivers of AmazonasEntityCategoriesRivers of Amazonas (Brazilian state)Tributaries of the Rio Negro (Amazon)