Cannabis Indica October 12, 2016October 12, 2016 thcscience_admin River in BrazilLongá RiverLocationCountryBrazilPhysical characteristicsSource • locationPiauí state The Longá River is a river of Piauí state in northeastern Brazil. See also[edit] List of rivers of Piauí References[edit] Brazilian Ministry of Transport 3°09′17″S 41°55′55″W / 3.15472°S 41.93194°W / -3.15472; -41.93194