Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Maullín River -  Maullín River is a river of Chile located in the Los Lagos Region. The river originates as the outflow of Llanquihue Lake and flows generally southwestward over a number of small waterfalls emptying into the Gulf of Coronados. The lower course of the river is actually a tidal estuary.
Answer:
Natural Place