Cannabis November 14, 2016November 14, 2016 thcscience_admin River in VenezuelaMorichal Largo RiverLocationCountryVenezuela Morichal Largo River is a river in the North eastern part of Venezuela. It is part of the Orinoco River basin. See also[edit] List of rivers of Venezuela References[edit] Rand McNally, The New International Atlas, 1993.