Answer the following question: Gila River - The Gila River (/hil/; O'odham [Pima]: Keli Akimel or simply Akimel Quechan: Haa Si'il) is a 649-mile (1044 km) tributary of the Colorado River flowing through New Mexico and Arizona in the United States. The river drains an arid watershed of nearly 60000 square miles (160000 km2) that lies mainly within the U.S. but also extends into northern Sonora Mexico. 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