Ptarmigan Lake (Ontario)

Ptarmigan Lake is one of a trio of lakes that form a small endorheic basin in Cochrane District, Ontario, Canada. It is about 270 m long and 120 m wide and lies at an elevation of 224 m. The lake lies about 16 km 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.