The Mine Safety and Health Administration (MSHA) issued a new Serious Accident Alert. On Dec. 11, 2017, miners were preparing for a shot. The miners were positioned about 130 yd. from the face.
Read MoreThe Mine Safety and Health Administration (MSHA) issued a new Serious Accident Alert. On Dec. 11, 2017, miners were preparing for a shot. The miners were positioned about 130 yd. from the face.
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