Roof collapses are the most dangerous situations that can occur in a mine. Having an emergency plan can save lives during a disaster.
U.S. Department of Labor/Mine Safety and Health Administration (MSHA), 1100 Wilson Blvd., 21st Fl., Arlington, VA 22209-3939, Phone: (202)693-9400, Fax: (202)693-9401
Available on VHS
Running time 16 minutes.
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