Mamiá River (Amazonas) From Wikipedia the free encyclopedia River in BrazilMamiá RiverLocationCountryBrazilPhysical characteristicsSource • locationAmazonas state Mouth • coordinates4°28′S 63°13′W / 4.467°S 63.217°W / -4.467; -63.217 Mamiá River is a river of Amazonas state in north-western Brazil. See also[edit] List of rivers of Amazonas References[edit] Brazilian Ministry of Transport This article related to a river in the Brazilian state of Amazonas is a stub. You can help Wikipedia by expanding it.vte