RE:RE:All in sustaining costs....History shows that they concetrated on the Platosa mine. But management knows that they have these highly propective areas that they can concetrate now. That is probably why Eric Sprott is still around and has recently, (August 2019) participated in the financing, (just over $1.0 milion).
To him the prospect of a discovery is so certain that he was willing to invest so much.