Usumacinta: Place of monkeys in nahuatl, the river of the Mayan culture, 34 the Nile of the Maya " the largest river in Central America, which is born from the confluence of the Salinas River ( Chixoy ) and from Guatemala into Mexico southeastern passion leading to the homonymous Gulf. Throughout the basin, there are numerous archaeological sites of this culture both in Guatemala and the Mexican States of Tabasco and Chiapas.