Mining
Stopes and pillars are 100íW x 100íL x 120íH in size.
Since levels are 150 ft apart, 100íW x 100íL x 30íH sill pillars will be left behind to allow for better stope stability and better ground conditions.
Each stope will be drilled, loaded, and mucked from the access drift below.
All stopes will be filled with a cement mix from above.