Answer the following question: Ptarmigan Lake' is one of a trio of lakes that form a small endorheic basin in Cochrane District Ontario Canada. It is about 270 metres (886 ft) long and 120 metres (394 ft) wide and lies at an elevation of 224 metres (735 ft). The lake lies about 16 kilometres (10 mi) north of the community of Calstock.The primary outflow is a small creek that flows through Swallow Lake to Pelican Lake which has no outlet. 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