Expanding further on those pictures, I recall talking with JB back then he thought the brecciated surface there acted like a cap on rich, widely disbursed mineralization that was trying to break through to the surface long ago (in geological time).  Earlier, ZTEM suggested mineralization, I think, 3,000 feet below grade.  The possibly near-surface skarn deposit indicated by the leaks/mineralization in breccia at the surface could put a copper-related jackpot within a few hundred feet of the surface, if memory serves.