The Shellmouth Reservoir is a man-made reservoir on the Assiniboine River in Manitoba and Saskatchewan Canada.The Shellmouth Dam (505749N 1012507W) is an embankment dam built by the Prairie Farm Rehabilitation Administration (PFRA). Construction started in 1964 and was completed in 1972 costing CDN $10.8 million. The dam is 70 feet (21 m) high and 4200 feet (1300 m) long. 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