Question: The Schmutter is a river in Bavaria Germany a right tributary of the Danube. Its source is 6 km southwest of Schwabmünchen in the Swabia region of Bavaria. It flows north and for several tens of kilometers it flows parallel to the Lech at only a few km west of the Lech. It flows into the Danube near Donauwörth. Towns along the Schmutter include Fischach Neusäß Gablingen and Mertingen. 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?
Answer:
Natural Place