CHEYENNE—Cloud Peak Energy Inc. faces state and federal violations after blasters at its Cordero Rojo coal mine in the Powder River Basin set off a massive explosion earlier this month that was ...

A new report says 91% of U.S. coal-fired power plants have leaked dangerous levels of contamination into the surrounding groundwater. The long list of plants includes the Michigan City generating ...

The Hermosa mining project in the Patagonia Mountains ... from private land the company owns in the mountain range about 9 miles from the town of Patagonia. Defense officials said manganese ...

The Monroe County coroner has released the name of a woman who died after a car crash in Barrett Township. Linda Knecht, 63, of Barrett Township, was pronounced dead at the scene on Saturday ...

The two then pushed a metal barricade into a line of Capitol Police officers, according to the DOJ. The officers retreated and formed a new protective line on the south side of the West Plaza.

Mining in the area dates back to 1863 with the Blue Bird mine with ore transported to Yuma and sent over to Swansea, Wales, for reduction. Prior to the 1900s, the focus was on lead-silver ore ...