The Southeast Alaska Indigenous Transboundary Commission says the outcome of the Kerr-Sulphurets-Mitchell project, if it ...

although the vast majority of ore has come from more than a century of digging what was once the world’s largest open-pit mine. Today it employs more than 2,300 employees, including those from ...

The Bagger 293’s primary task is to work at the Hambach Surface Mine in Germany, one of the world’s largest open-pit coal ...

The $800 million proposal aims to sustain production at the open ... mine. (Image courtesy of Codelco.) Similarly, plans to boost output at El Teniente, the world’s largest underground copper ...

The Great Lakes region contains nearly 85 percent of North America's surface freshwater, and more than 20 percent of the world's supply of ... Any new heavy-metals mines in northeastern Minnesota ...