With respect to your question:-
The original scoping studies by ACA Howe were excellent, but a work in progress that was never followed up. DeCosta's report on the property is lengthy and goes into a great deal of detail, but it's ultimately based on Howe's data taken out of context and with extrapolations of other reports to produce the ultimate best case scenario.
Having worked extensively (including at present) with porphyry, breccia and skarn deposits I know that breccia systems are not always indicative of underlying mineralisation (it is quite possible for all the potential energy in the system to be used up in breccia formation without the formation of a crackle breccia or relict mineralisation in the host porphyry); the presence of abundant quartz is indicative of high fluid flow, not economic mineralisation; IP surveys are not gospel and can respond equally well to barren iron mineralisation as well as to copper and, most importantly there is an enormous difference between a mineral resource and a mining reserve - quoting a figure of 722,000 contained ounces of gold (based on only a few holes, as if they are representative of the whole) for the Gordon Pipe may, for the sake of argument, possibly be correct, but when you do a rough calculation based on likely tonnages, the overall grade would have to be below 1g/t for the pipe as a whole, and even if you selectively mined the pipe to take higher grade zones, the likely returns would still render it sub-economic.
At the moment you have a low grade breccia pipe and some potentially economic gold veins, but not much else that can be positively confirmed. The Lipangue area has potential, but talk of World class deposits is at present without foundation, and talk of mineralised porphyry systems and billions in the mountain is just wishful speculation. The answer is simple - bring back ACA Howe and let them complete the job with a definitive drilling campaign and verifiable modelling of the data to give you a real idea of what the mountain is worth.
