Federal impact inspections at
The Mine Safety and Health Administration conducted the
inspections at nine coal mines in West Virginia ,
Kentucky , Virginia ,
Illinois and Utah . In addition, a surface gold mine in Nevada and an underground salt mine and a crushed
limestone operation in Kansas
were inspected.
The inspections began in 2010 after the Upper Big Branch Mine explosion inWest Virginia that
killed 29 coal miners.
The inspections began in 2010 after the Upper Big Branch Mine explosion in