Nevada has an estimated 200,000 abandoned mines. As many as 400,000 abandoned mines are scattered throughout the West.

One site where Trout Unlimited has worked is the abandoned gold and silver Orphan Boy Mine near Alma, Colorado. Jason Willis, the director of the group's Western Abandoned Mine Lands Program ...

Max Baucus of Montana took to the floor of the Senate to introduce a bill intended to help clean up abandoned ... and silver,” Baucus, a Democrat, told his congressional colleagues. “Mining ...

There are about 500,000 abandoned mines in the United States, according to the Mine Safety and Health Administration, and these long-forgotten facilities can pose a variety of risks to people ...

Fortuna Silver Mines Inc is engaged in precious and base metal mining and related activities in Argentina, Burkina Faso, Mexico, Peru, and Cote d’Ivoire. The company operates the open pit ...

WINDOW ROCK, AZ (AZFamily) — There are about 140,000 abandoned hard rock mines across the US and hundreds in Arizona. Sen. Mark Kelly’s bipartisan bill called the Good Samaritan Remediation of ...

Swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way — a phenomenon known as “ mine subsidence ” that poses a ...

There are as many as 500,000 abandoned mines nationwide — far outnumbering those that are still active, according to the federal Mine Safety and Health Administration. They dot the landscape of ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. There are about 500,000 abandoned mines in the United States, according to the Mine Safety and ...