Although no one could say exactly how long it’s been since the last time the Berkeley Pit froze over, Mark Thompson, Montana Resources vice president for environmental affairs, said that by the ...

With a low of minus 27 degrees in Butte Thursday, the Berkeley Pit froze, giving life to the old saw "when hell freezes over." Leeann Allegretto, National Weather Service meteorologist, said ...

Butte's Berkeley Pit is infamously ... over 90% of these minerals ... “I think we’ve got a fairly large feed stock we can produce out of the Berkeley Pit. So I think at this point in time, ...

Wed, 25 Sep 2024 04:10:59 GMT (1727237459975) Story Infinite Scroll - News3 v1.0.0 (common) 31b7af592d3a3fe8a54e117c093155f2b0ca5568 ...

The Berkeley Pit, however, has a much richer concentration of rare earths in solution and a higher volume of water and is expected to produce 40 tons a year. Dr. Ziemkiewicz believes this process ...

The Berkeley Pit had killed ... In 1995, over 300 migrating geese landed in the pit and died from ingesting the toxic water. The Stierles were chemists at nearby Montana Tech at the time, ...

At the time the Berkeley Pit began operating in 1955 under the ownership of the famous Anaconda Co., copper prices were at their highest since the end of World War II.

BUTTE — Montana Resources officials say they won't have a final tally of snow geese that perished last week in the contaminated Berkeley Pit water until mid-week at the earliest.

Since 2019, Montana Resources, in partnership with the Atlantic-Richfield Co., has pumped 9 billion gallons of treated Berkeley Pit water into Silver Bow Creek.