Please answer the following question: 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. River Styx (Marquette County Michigan) - The River Styx is a 0.6-mile-long (1.0 km) stream in Marquette County Michigan in the United States. It flows from the outlet of Ives Lake north over a waterfall to Third Lake an arm of Pine Lake. Via the Pine River (the outlet of Pine Lake) water from the River Styx flows to Lake Superior.
Answer:
Natural Place