The Brent crater is an impact crater in both the geographic township of Deacon, Unorganised South Nipissing District and the municipal township of Papineau-Cameron in Nipissing District, northeastern Ontario, Canada, located north of Cedar Lake in northern Algonquin Provincial Park. It is 3.8 kilometres in diameter and the age is estimated to be 396 ± 20 million years (Middle Devonian). Read more