Ron Halsey

This week, for the first time ever, once toxic water from the Berkeley Pit , the abandoned open pit copper mine in Butte, is being treated and released...

For the first time ever, once-toxic water from the Berkeley Pit , Butte’s abandoned open pit copper mine, is being pumped, treated and discharged into...

37 years ago, Atlantic Richfield abandoned an open pit copper mine in Butte and allowed it to flood with toxic mine water. Now, the company estimates...