Canada’s Northwest Territories Diamond Mines Are Closing

After decades of growth driven by diamond mining, Canada’s Northwest Territories are facing the closure of three major mines and wondering: What’s next?The A418 pit at the Rio Tinto Diavik Diamond Mine in Lac de Gras, Northwest Territories was closed to mining activity in 2022 and is being filled with processed kimberlite and water as part of Diavik’s agreement to remediate the landscape back to as close to its original form as possible.