A mine safety expert says many old mines in Western Pennsylvania have less than 50 feet of ground cover between the mine and the surface, making them vulnerable to collapse.

The Environmental Defense Fund estimates there are somewhere between 300,000 and 700,000 undocumented, abandoned oil and gas ...

A mine safety expert says many old mines in Western Pennsylvania have less than 50 feet of ground cover between the mine and the surface, making them vulnerable to collapse.

Old wells pose health and safety risks by leaking pollutants that can contaminate groundwater and impact air quality.

His organization has been documenting the problem in western Pennsylvania. With abandoned boats in the Pittsburgh region, he said, “One of the things that we’ve done is create a map of the ...

UNITY TWP., Pa. -- The body of a woman who fell into a 30-foot-deep sinkhole while looking for her cat in western Pennsylvania has been recovered. The Westmoreland County coroner said the body of ...