Lac de l'Hongrin is a lake in Vaud Switzerland. The reservoir with a surface area of 1.60 km is located in the municipalities of Chateau-d'x and Ormont-Dessous. The two arch dams Hongrin Nord and Hongrin Sud were completed in 1969. The Dam helps with hydro electricity and stops flooding in the area.16x Media related to Lac de l'Hongrin at Wikimedia CommonsTemplate:Portal:Switzerland/Stub 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