Usumacinta River - The Usumacinta River (named after the Howler monkey) is a river in southeastern Mexico and northwestern Guatemala. It is formed by the junction of the Pasion River which arises in the Sierra de Santa Cruz (in Guatemala) and the Salinas River also known as the Chixoy or the Negro which descends from the Sierra Madre de Guatemala. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Natural Place