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 ...

An announcement from Torchlight Innovations, Inc. ( ($TSE:RZL) ) is now available. RZOLV Technologies has completed a bulk-scale vat leach ...

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Even though the Colorado Supreme Court last week rejected Summit County’s ban on cyanide-based gold mining, no one is expecting a rush of mining applications any time soon. “I think the chances are ...

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 ...

Canada’s Yukon Territory said elevated levels of cyanide were detected in a waterway near Victoria Gold Corp.’s Eagle Mine after an equipment failure and landslide at the site. Yukon Mining Minister ...

WASHINGTON--(BUSINESS WIRE)--The International Cyanide Management Code reached an important milestone this week with its announcement of the 1,000 th certification in the program’s history, which ...