Did you know?
You can earn activity points by filling your profile with information about yourself (what city you live in, your favorite team, blogs etc.)
I don't understand the point your trying to make by providing the Gransburg example. The Gransburg is a poly metallic mine. The orebody was part of a mountain.
Probe's high grade core is a good thing, but as you go south, it gets deeper. At some point the stripping ratio will not allow economic extraction.
The PEA will give us some indication of the cut-off point.
