RE:Question for paths ... For those interested in the details, this is a link to the discussions that Allenbow refers to
https://ceo.ca/pvg
In summary . the discussion suggests that the present ore reserve grade significantly overstates the grade that will be milled going forward.
It also suggests that a failure to keep up with back filling mined out stopes has and will continue to compromise efficient mining.
Plus one or two more details that suggest that yes indeed the poster is an experienced mining engineer who knows what he is talking about