Birchtree Mine is an underground nickel mine, owned and operated by Vale Inco in the city of Thompson, Manitoba, Canada.[1] It lies in the nickel containing Thompson Belt, a geologic feature associated with the Circum-Superior Belt large igneous province throughout the Superior craton.
History
Birchtree mine originally opened in 1965 until 1978 when it was put in "standby" until 1988.[1] The mine reopened again in 1989. [2] In 2000, Inco authorized US$48 million [3] to deepen the mine to 4100 ft, expanding production to 3,800 tons per day.[1]