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The Berkeley Pit in Butte, Montana, has been a source of environmental concern for decades, as its waters—highly acidic and ...

WVU Water Research Institute Director Dr. Paul Ziemkiewicz said the rare earth recovery project has included the construction of a new acid mine drainage treatment plant near Mount Storm in Grant ...

Production and sale of copper concentrate, containing gold and silver by-products from the Group's 100% owned DeGrussa Copper Operations in Western Australia; Production and sale of copper, zinc ...

Eventually, mining and smelting faded. The mighty Anaconda Company, that at one time all but ruled the state of Montana ... that copper mining and smelting was a losing proposition, closing the ...

A delegation of county leaders and community members from Ireland stopped in Butte on Wednesday, exploring the town's Irish heritage and tracing roots back to ancestors who immigrated during the ...

The U.S. Forest Service, which owns the site, plans to trade a portion of it to a foreign-owned mining company, Resolution Copper, in exchange for other environmentally sensitive properties.

Congress has tucked an 800-acre expansion of an underground Montana coal mine into a budget reconciliation bill that cleared its first committee vote last week. A two-page provision of the Natural ...