A quarterly report for Core Natural Resources, the company that acquired Leer South in a merger, was released Wednesday and showed that an underground fire at the mine in January cost the company ...

Boulder completes the Marshall Mesa Coal Fire Mitigation Project, extinguishing an over-century-old seam fire and planning ...

Dipka Megaproject successfully commenced operations by loading the first coal rake from its newly built Rapid Loading System ...

Boulder Open Space and Mountain Parks personnel took over the Marshall Mesa Coal Fire Mitigation Project area on Thursday, a ...

The Marshall Mesa Trailhead will now be just a figurative, not literal, hotspot for mountain biking, horseback riding and hiking.

A mine safety expert says many old mines in Western Pennsylvania have less than 50 feet of ground cover between the mine and ...

Shutterstock The Underground Inferno That Won’t Stop Burning Pennsylvania’s got an underground fire that’s been burning since ...

Gypsum may be an unfamiliar name to many but we are surrounded by it every day. It is a mineral used to make types of plaster ...

A renewable natural gas plant operator at the Keystone Sanitary Landfill has the green light to drill a nearly 3-mile-deep well in Throop this week as it looks to permanently store carbon dioxide deep ...

It took a while, but Erie County is back to getting rock salt from Canada, alleviating a serious road salt shortage that ... of the largest producing salt mines in the U.S. Municipalities have ...

Image Source : INDIA TV The image has been used for representative purposes only. In a tragic incident, at least eight people were killed and six others sustained injuries after a state roadways ...