In 2011, longwall mining was responsible for 40% of coal in the US from underground mines. This type of mining can impinge on people who live in the area, however.

Crews tearing apart a 1.5-acre pile of coal mine refuse that has been smoldering for two decades recently uncovered a section which measured 300 degrees Fahrenheit.

An impervious vein of igneous rock is preventing the coal miners from reaching more of the black stuff. Unless they can work around it, miners may be laid off by the hundreds.

Heat from underground coal mine fires, possibly drawn to the surface by 100 mph winds, has not been ruled out as a possible cause of the Marshall Fire. RELATED Investigators: ...

34 Bosnian Coal Miners Trapped Underground After Earthquake. Published Sep 05, 2014 at 5:53 AM EDT Updated Feb 27, 2016 at 11:16 PM EST.

World-first 3D laser-scanning technology makes coal mining safer by giving workers a view of what's underground without actually having to be there.

In late September, an underground coal mine just outside the town of East Carbon in rural Utah caught fire. More than two months later, it’s still burning. Now, the once-bustling mine called ...