But, today, that mining has hollowed out the ground beneath us. Pennsylvania’s inventory of abandoned coal mines is larger than that of any other state in the nation, and the Keystone State has ...

UNITY TOWNSHIP, Pa ... firefighters, mining experts, and search and rescue teams have spent nearly two full days digging, shoring up and searching an abandoned coal mine behind Monday's Restaurant ...

Three days after a Pennsylvania woman searching for her ... drop into a damp, dark hole where coal mining ended seven decades ago. After overnight snowfall left a thin coating on the ground ...