PENNSYLVANIA, USA — Pennsylvania has a long history of anthracite coal mining. The result is that millions of buildings and homes are located above abandoned mines. Looking to see old mine maps? Penn ...

Swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way and threaten people and property. That's what searchers in ...

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 ...

Kenny Pollard, 75, holds a photo in his home from a vacation that he and his wife, Elizabeth, took to Clearwater Beach, Fla., approximately 10 years ago. Law enforcement members watch as rescue ...

Pennsylvania hides secrets beneath its rolling hills and forests, where entire towns have vanished from modern maps. These ...

There are as many as 500,000 abandoned mines nationwide — far outnumbering those that are still active, according to the federal Mine Safety and Health Administration. Rescue workers search through ...

Swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way and threaten people and property. That's what searchers in ...