University of Missouri researchers are developing a process to transform abandoned mining waste into an untapped treasure ...

The QUICKCHANGE system has turned that problem on its head with a new design that uses a slot-and-slide mechanism. McLanahan ...

New research shows that magnesium and other metals in mine waste can be solubilized and recovered thanks to acid-producing bacteria. Researcher Nathan van Wyk believes that the method has great ...

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 ...

The Environmental Protection Agency has fined Hecla Mining Company $143,000 for improper disposal and management of hazardous waste at their mine on Admiralty Island. The settlement agreement cited ...