Butte, Mont. • There’s a tale told about a miner who found copper cans in his garbage dump in the early days of mining. Wastewater from copper mining had flowed through his land, he said, and turned ...

It would dwarf the Berkeley Pit: A hole blasted and dug into the Alaskan landscape about a half-mile deep and 2.5 miles across. What could go wrong in the pursuit of what's touted as the largest known ...

Getting rare earth minerals from mine waste, and decoding the language of the wolves. Montana researchers search for ways to refine rare earth elements from toxic mine waste. Plus, a Paradise Valley ...