Though I would ask this question here as I couldn't see any mining engineering type forums. What are the sort of costs for underground mining of narrow vein gold? I understand there are many factors but was just interested in some ballpark kinds of figures for something like: - 2m wide by 3m high drive, sloping at about 30 degrees. - no stoping - granite host rock with mylonite and pyrite/quartz veining - only 100m deep - near vertical vein - unstable conditions and quite wet I am a holder in a Co that seems to be coming in at around $1000-$1600 per tonne excavated. But I dont know if that is good or bad.
