El río Usumacinta atraviesa la jungla del Yucatán hasta desembocar en el golfo de México. Durante 200 kilómetros hace de frontera entre Guatemala (a la derecha) y México (a la izquierda). The river Usumacinta goes through the Yucatan jungle until its mouth in the gulf of Mexico. Along 200 kilometers it serves as border between Guatemala (on the right) and Mexico (on the left).