The Sudbury Basin is a large geological structure located in Ontario, Canada. It is known for its unique shape, resembling a large oval, and was formed about 1.85 billion years ago due to a massive meteorite impact. This impact created a significant depression in the Earth's crust, which later filled with various minerals and ores. Today, the Sudbury Basin is famous for its rich deposits of nickel, copper, and platinum group metals, making it a vital area for mining. The region is also home to the City of Greater Sudbury, which has developed around these mining activities and is known for its diverse culture and natural beauty.