Grijalva River, formerly known as Tabasco River, (Spanish: Río Grijalva, known locally also as Río Grande de Chiapas, Río Grande and Mezcalapa River) is a long river in southeastern Mexico. It is named after Juan de Grijalva who visited the area in 1518. The river rises from Río Grande de Chiapas in southeastern Chiapas and flows from Chiapas to the state of Tabasco through the Sumidero Canyon into the Bay of Campeche. Begins as "Río Grande de Chiapas" or "Río Mezcalapa", later, Río Grande is s…