Mining continues at the Continental Pit. Nearby is the Berkeley Pit, a site for acid mine drainage that poses an opportunity ...

There are 237,000 metric tons of arsenic trioxide locked in the subterranean caverns of Giant Mine on the edge of Yellowknife, an unwanted byproduct from what was once one of the largest gold ...

After addressing backfill leakage and rehandling issues and transitioning into higher-grade areas, the big South Deep gold ...