Montana has a beautiful lake so toxic, it kills migrating birds and dissolves metal
Shutterstock Berkeley Pit, Montana On April 22, 1982, workers shut off the pumps at Butte’s Berkeley Pit for the last time. The massive copper mine had operated for 27 years, but falling prices made it too costly to continue. Without the pumps running, toxic groundwater began filling the mile-wide hole. Within months, what had been … Read more