Butte

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In this Dec. 14, 2016, photo old mining headframes dominate the skyline of Butte, Mont. Residents of the Montana mining city of Butte say the deaths of more than 3,000 snow geese should be a wake-up call for the future of a former open pit mine that is filled with 50 billion gallons of acidic, metal-laden water. (AP Photo/Matt Volz)