Stephen Fields of Chauncey was drilling a test hole in a coal seam when the rock came loose from a highwall due to freezing ...

The Mine Safety and Health Administration (MSHA) said 33-year-old Gary Chapman died from rocks falling from the roof ... mine floor with several pieces of rock on top of him.

The MSHA concluded in a final fatality report ... died when he was struck by falling rock from the mine roof at the Arch Resources-controlled Mountaineer II Mine in Logan County.