The Troy Mine is a silver and copper producer near Troy, Montana, in Lincoln County. It operated between 1981 and 1993, when it was closed. It was re-opened in 2005 to be used as a training site for the Rock Creek Mine, located nearby in Sanders County, Montana.

The Troy Mine produced about 1.25-1.4Moz silver per annum as of 2012; 159,121 pounds of copper and 27,053 pounds of silver between November 2014 and January 2015.[1][2][3]

A miner was killed in a cave-in in 2007. Rockslides and rock falls closed the mine in December 2012. It re-opened in September 2014.[4]

In January 2015, Revett Minerals Inc. announced that the Troy Mine would be "placed on care and maintenance" due to low minerals prices.[2][3]

In March 2015, it was announced that Hecla Mining would purchase both Troy Mine and nearby Rock Creek Mine, and that Troy Mine, which has a $12.9 million reclamation bond, would be closed.[5][6]

As of 2012, the total reserve base was 12Moz of silver.[1] An estimated 12 years of ore remained in its deposits as of 2015.[6]

References

  1. 1 2 "Revett Minerals Inc. - Ethical mining in Montana's nature". Caesar's Report - Mining and Commodity Research. 2015-12-05.
  2. 1 2 Chaney, Rob (2015-01-21). "Citing low metals prices, Revett closes Troy mine". Missoulian. Retrieved 2015-04-16.
  3. 1 2 "Revett Places Troy Mine on Care and Maintenance". 2015-01-19. Retrieved 2015-04-16.
  4. ↑ Frantz, Justin (2015-01-20). "Troy Mine to Close Next Month". Flathead Beacon. Retrieved 2015-04-16.
  5. ↑ Chaney, Rob (2015-04-13). "Hecla confirms Troy Mine must close". Missoulian. Retrieved 2015-04-16.
  6. 1 2 Chaney, Rob (2015-04-14). "Future owners confirm Montana copper and silver mine must close". Billings Gazette. Retrieved 2015-04-16.


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