"It's a great opportunity to truly dig in and solve what hasn't been solved for 100 years," said Jeff Graves, director of the program. Stuck between a rich past and uncertain future, Colorado’s ...

LOUISVILLE, Ky.—With a federal investigation into technically active but nonproducing “zombie” mines set to begin in March, a citizens law group in Kentucky has found production idled at nearly 40% of ...

Add Yahoo as a preferred source to see more of our stories on Google. An employee with Runyan Construction takes a temperature reading of a Gallup-area coal mine fire that's been burning since for at ...

Decades after underground coal mining all but ended in Eastern Pennsylvania, residents of certain areas continue today to face a hidden danger: mine subsidence. Gaping holes sometimes open without ...

NEW JERSEY — An unstable crater in the forest floor is just another reminder of the state's rich mining history and the many tunnels left behind and hiding just under the surface. Timothy Rack stands ...

There are about 500,000 abandoned mines in the United States, according to the Mine Safety and Health Administration, and these long-forgotten facilities can pose a variety of risks to people unaware ...

Almost two dozen Donegal-area residents and environmental activists urged state regulators Wednesday to reject a mining company’s request to renew its permit to discharge water from its Donegal ...