Here is how I would do this. Bear in mind that I have nothing in the way of a mining background, other than being born in Sudbury when it was a balck pile of rocks!

So you have this Aerotem team and you are looking for more gold.

you know where some is already located, the depth and the density, right!

So you fly over the FDN area and map that. Now with a good idea of what you are looking for in terms of 'readout', you begin to broaden your search.

How many passes (flights)can it take to determine the extent of FDN and locate her sisters?

Me thinks that they now have a good idea of where the fault is, how far it extends and what, if any, sister locations exist.

Safe, the fact that some Aerotem flights have taken place makes me feel a little more comfortable with the 3 concession limitation.

Just my op

Helo