BUTTE — Fifteen years ago, as state researchers ventured into the Berkeley Pit to collect their annual samples from the contaminated water, a surprise greeted them. On this particular day in September ...
Satellite surveillance initially picked up movement suggesting instability in a small area of a wall above the Berkeley Pit. Radar confirmed the movement and has been monitoring the area since late ...
Add Yahoo as a preferred source to see more of our stories on Google. Berkeley Pit pumping temporarily stopped for several months as Montana Resources addresses north wall stability issues and builds ...
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