Q:The Muskingum River (Shawnee: Wakatamothiipi ) is a tributary of the Ohio River approximately 111 miles (179 km) long in southeastern Ohio in the United States. An important commercial route in the 19th century it flows generally southward through the eastern hill country of Ohio. Via the Ohio it is part of the Mississippi River watershed. The river is navigable for much of its length through a series of locks and dams. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Natural Place