Yellowknife, NT (June 6, 2018) – On Saturday, the Workers’ Safety and Compensation Commission (WSCC) announced the winners of the 61st Annual Mine Rescue Competition, held June 1 and 2, 2018 in Yellowknife. Gahcho Kué Diamond Mine of De Beers Canada took home the Overall Surface trophy, and Diavik Diamond Mine of Rio Tinto Ltd. took home the Overall Underground trophy.