Troy Mine

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. "Revett Minerals Inc. - Ethical mining in Montana's nature". Caesar's Report - Mining and Commodity Research. 2015-12-05.
2. Chaney, Rob (2015-01-21). "Citing low metals prices, Revett closes Troy mine". Missoulian . Retrieved 2015-04-16.
3. "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. Chaney, Rob (2015-04-14). "Future owners confirm Montana copper and silver mine must close". Billings Gazette. Retrieved 2015-04-16.

External links

• "Mine Site Visit: ASARCO/Troy Mine" (PDF). United States Environmental Protection Agency Office of Solid Waste. 1991. Archived from the original (PDF) on April 16, 2015. Retrieved 2015-04-16.

48°15′06″N115°54′03″W / 48.2518°N 115.9009°W / 48.2518; -115.9009