The Ptarmigan and Tom Mine were gold producers located in the Northwest Territories, Canada at Yellowknife.
A new company, Treminco Resources Limited, reopened the workings in 1985 and production from the Tom (62°31′57″N 114°11′41″W / 62.53250°N 114.19472°W / 62.53250; -114.19472 (Tom Mine)) portal began in 1986 with material being trucked to Giant Mine.
Low gold prices forced the company to close the mines in 1997.
Total gold production has been approximately 120,000 troy ounces (130,000 oz; 3,700,000 g).
[1] On February 2, 2010, Trivello Energy Corp., a publicly traded company on the TSX Venture Exchange in Canada under the trading symbol "TRV", announced it had acquired the Tom Gold Mine project including five claims of approximately 650 acres (260 ha).