Cannabaceae October 12, 2016October 12, 2016 thcscience_admin River in BrazilPau d'Arco RiverLocationCountryBrazilPhysical characteristicsSource • locationPará state The Pau d'Arco River is a river of Pará state in north-central Brazil. See also[edit] List of rivers of Pará References[edit] Brazilian Ministry of Transport 7°37′58″S 49°22′43″W / 7.63278°S 49.37861°W / -7.63278; -49.37861