![Tailings filling the High Ore Creek valley, Boulder River watershed southwestern Montana in 1997. The creek eroded a channel through the tailings, washing them down to the Boulder River and enriching the water with metals.](https://webarchive.library.unt.edu/eot2008/20080921145120im_/http://www.usgs.gov/themes/factsheet/095-99/amlcomet.jpg)
Tailings filling the High Ore Creek valley, Boulder River watershed southwestern Montana in 1997. The creek eroded a channel through the tailings, washing them down to the Boulder River and enriching the water with metals.
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