The Graham Creek project is located to the west of the East Boulder Mine and can be accessed from the existing infrastructure at East Boulder. The project is utilizing an existing tunnel boring machine (TBM) to extend the mine’s main travelway (the 6,500 level) about 8,200 feet toward the western extremity of the J-M Reef. At that point, the surface topography drops down making it feasible to add a ventilation raise to surface – which would be required to support future production in this area.
The Graham Creek project is expected to take about five years to complete. As the TBM drive progresses, definition drilling will be completed behind it, which will allow a better understanding of the grade and continuity of the J-M Reef to the west of the current operations.