Getting your Trinity Audio player ready... LEADVILLE — Millions of tons of waste from decades-old mining operations sit in the hills east of town. The brown and orange piles of abandoned ore rise 30 ...

Piles of waste left over from decades of mining surround the town of Leadville, Colorado. Now, the Denver Post reports that a local company wants to use cyanide to extract gold and silver from those ...

RZOLV Technologies is a clean-technology company focused on non-cyanide gold extraction chemistry rather than mineral ownership. Its work is centered on a structural issue emerging across the gold ...

BOISE, Idaho (AP) -- A company wants to use cyanide as part of gold mining in the Boise River watershed, the second application in 2004 for a mining permit to extract gold from land above the capital.

Two contradictory reports surrounding toxic mining pollution at MIDROC Gold’s Lege Dembi site have placed the controversial commercial-scale gold extraction ...

While cyanide in mining is nothing new, using heap leaching to process gold didn't come along until the 1970s, McCullough said, when the first such mine was opened in Nevada. The process opened up the ...

The public has until Feb. 6 to comment on the proposed Grassy Mountain Gold and Silver Mine near Vale in Malheur County Oregonians have roughly two months to weigh in on a Nevada company’s plans to ...

It said it had fielded "multiple inquiries" regarding whether cyanide in gold mining was banned within the European Union, which includes French Guiana. Montagne d'Or has a 2.75 million ounce gold ...

An assurance has been given that no cyanide will be used in the proposed mining of gold in Co Tyrone. Mining company Dalradian has applied to extract gold in the Sperrin Mountains. It has been working ...

That same year Pegasus Gold filed for bankruptcy. On Monday, the Montana Department of Environmental Quality announced it has transferred an operating permit from Majesty Mining to Bear Claw Mining ...

For at least 16 million people worldwide, artisanal small-scale gold mining (ASGM) is a pillar of stability and opportunity, particularly in rural, impoverished communities. But the industry is ...

Although wildcat miners might be expelled from Indigenous territories and areas with high levels of protection, unallocated public lands and waterways will remain exposed to their harmful practices, ...