Good question Wolca. There has already been recent 6 hole...

Good question Wolca. There has already been recent 6 hole drilling down to 250m from the surface and mineral resource still present that this depth, so thats approx 165m below pit bottom (85m).
There was also previous drilling at depth per 13^th Dec 2017 Report which covers 2007 /2017 some 44RC and 10 Diamond holes total 5,497m (ave 101m for 54holes) some down to 220m. Within the report it suggests that further drilling as the resource remains open at depth “will be required from underground assuming final feasibility is positive”
The DFS is close to being released suspect they already have required info.
The cross sections presented Pennys Find appears to be conical shape dipping to north –easterly so Ore deposit is getting smaller at depth.
DFS will be focusing on underground mining costs I reckon
Structural Roof Requirements , Mining Extraction Equipment ,Ventilation Fans, Ore Transport methods etc
To date ground water seepage has been minimal so pumping station costs unlikely to be significant.
Interesting times GLTA