Barreiros River (Tocantins) From Wikipedia, the free encyclopedia River in BrazilCountryBrazillocationTocantins stateBarreiros RiverLocationCountryBrazilPhysical characteristicsSource • locationTocantins state The Barreiros River is a river of Tocantins state in central Brazil, a tributary of the Araguaia River. List of rivers of Tocantins References Brazilian Ministry of Transport This article related to a river in Tocantins, Brazil is a stub. You can help Wikipedia by adding missing information.vte Related Articles