Alberta s energy regulator is examining practices at a coal mine in the province after three "instabilities" in its rock walls including one weeks ago that partially buried a large piece of heavy equipment and its operator.
Regulator investigates Alberta coal mine after worker nearly buried cbc.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cbc.ca Daily Mail and Mail on Sunday newspapers.
Alberta regulator probes mine wall 'instabilities' after worker nearly buried: union toronto.citynews.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from toronto.citynews.ca Daily Mail and Mail on Sunday newspapers.