The story goes that there were some Iroquois camping on an island on the lake, and at night some "Temagami's" went ashore and slit the bottoms of their canoes.

While the fish population has steadily declined over the years, the lake is still home to pike, walleye, trout, whitefish, perch, bass, etc.

The lands surrounding the lake are part of the Canadian Shield, the largest single exposure of Precambrian rocks in the world which were formed after the Earth's crust cooled.

The hills in the Temagami area are remnants of the oldest mountain range in North America that date back during the Precambrian era.

Other processes, such as volcanic activity and geologic faulting in which the earth cracks open also contributed to the formation of these mountains.