Lake Wanapitei
Lake Wanapitei is an impact crater lake within the city of Greater Sudbury, Ontario, Canada and Wahnapitae First Nation. Adjacent to the nearby but unrelated [Sudbury Basin|Sudbury impact crater], it is one of the worlds largest lakes entirely located within the boundary of a single municipality.
The crater itself is in diameter, with an estimated age of 37.2 ± 1.2 million years, dating it to the Eocene period. The Anishinaabemowin name for the lake, Waanabidebiing, means "place where the water is shaped like a tooth" and refers to the shape of the lake from above.
Geography
The Lake Wanapitei impact, which created the crater lake, was estimated to have been formed 37.2 ± 1.2 million years ago during the Eocene period. A 2003 study proposed that the crater itself is between three and four kilometres in diameter, while also proposing that it may have been formed by large scale faulting. Another study in 2006 compared the crater to the Popigai, Chesapeake Bay, Mistastin and Haughton impact craters.The Wanapitei River flows through the lake, and the lake itself is located within the Lake Wanapitei Subwatershed of the Great Lakes Basin watershed. The subwatershed includes of forests, of lakes, and of wetlands. Within the subwatershed is the Chiniguchi Waterway Provincial Park#Wolf [Lake Forest Reserve|Wolf Lake Forest Reserve] covering of old growth red pine forest. The reserve contains trees estimated to be around 300 years old.