Piauí River (Piauí) This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Piauí River" Piauí – news · newspapers · books · scholar · JSTOR (June 2016) (Learn how and when to remove this message) River in BrazilPiauí RiverLocationCountryBrazilPhysical characteristicsSource • locationPiauí state The Piauí River is a river of Piauí state in northeastern Brazil. See also[edit] List of rivers of Piauí References[edit] Brazilian Ministry of Transport[dead link] This article related to a river in Piauí, Brazil is a stub. You can help Wikipedia by expanding it.vte