where mining dates to the late 1700s, coal was mined in nearly half of the state's 67 counties and there are at least 5,000 abandoned underground mines, leaving behind hazards that officials say ...

Since the mid-1700s, years before the Declaration of ... incidents involving ground movement following underground mining — since 2017. The search-and-rescue effort launched early last week ...

In the late 1700s to mid-1800s, coal miners worked in dim light, fueled at first by candles affixed to their heads, and later by whale’s oil lamps. Hundreds of years later, Underground Miners, a ...