Please answer the following question: Sperillen is a lake in Adal in the Ringerike municipality of the county of Buskerud in Norway. The lake has an area of 37 km is 108 meters deep at its deepest and lies at 150 meters above sea level.The rivers Begna from the valley of Begnadalen and Urula from the valley of Hedalen flow into the lake at the northern end on either side of the town of Nes i Adal. At the southern end the outflow powers a hydro-electric power station at Ringmoen. 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