The expansion permits Signal Peak Energy to extract nearly 60 million tons of coal from the Bull Mountains mine north of Billings.

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 ...

BHP’s Jessica Farrell is shaping the future of mining and is a finalist in the Financial Review Women in Leadership Awards Resources, industrials and utilities category.

EPA's ruling won't stop construction of the Hermosa Mine, which began last fall near Patagonia in Southern Arizona.