Abandoned coal mines had left waterways acidic and rusty orange. Local residents are cleaning them up, and recovering rare ...

Oman has signed an OR200 million ($520 million) agreement with domestic company Global Integrated Engineering to mine salt compounds in a concession in the central region of Wusta. The 15 sq km ...

The gaping mouth of Resolution Copper Mining’s No. 10 shaft is 28 feet across and opens into a sheer drop of nearly 7,000 feet, making it the deepest continuous mine shaft in the United States ...

Sources. Anaconda’s Twin Buttes Project. A new and bold approach to mine development. Engineering and Mining Journal, April 1967. Anaconda’s $200 Million Twin Buttes Mine, Pay Dirt for April ...

We mix anti-skid and salt together," said Himmelberger. "The temperature always plays a part in salt. I think 25 to 23 degrees it's a chemical reaction, so the colder it is the less salt breaks down." ...