Ann: Deep Diamond Drilling Extends Mineralisation to Over 600m, page-47

Unfortunately geological information is all greek to me.Comments on the following from anyone with relevant knowledge would be welcome. Is it the case that NST has a working open cut at porphyry and perhaps an old non working open cut at Wallbrook and nxm tenements are in between. It appears that around 2g/ton is profitable for open cut mining and 2.5-4 g/ton for underground. Is there a reasonable prospect on the assay results to date that there will be an open cut mine joining the 2 NST mines through the crusader and templar tenements? Any input appreciated.