Regulator investigates Alberta coal mine after worker nearly buried
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.
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.
