I honestly don,t think your geo could justify saying it would be shaft mining. There is not enough public info out to determine this. If we have mineralization between the veins on top of the anomaly at an economical grade, plus if there are veins closer together that the trenching has revealed, I would disagree with your geo. If the anomaly is made of mineralized stock work, with high grade veins going through it everywhere, it would be senseless to shaft mine it. To shaft mine it would be to high grade it, leaving economical ore behind. If the POG keeps rising, this lower grade ore left behind becomes more valuable. The cost to shaft mine is much more than open pit, then you get into feasabilty/viability issues. Then you have to decide whats the cheapest way to mine this.

If you can, have your geo look at the sections of disseminated gold, there are 5 of them that testing has been done on. Maybe he missed this, he needs this to draw an early conclusion. He also needs to know what length of economical mineralization the drill holes in the anomaly came up with, this will tell much of the tale, especially if mineralization starts at surface and continues consistently to depth.

This is only my opinion, but it would be interesting to get some other thoughts on this subject.