I kept reading more historical reports and I have the same...

I kept reading more historical reports and I have the same feeling - but sigma has plenty of land. So, unless we start to grab more land I doubt we will have a comparable resource.
From my research Sigma has pretty much claim most of the land which contains the historical sites - I just finished mapping all these:

yellow circle: Salinas
green circle:LRS
Magenta: Sigma

pretty much all the red and blue tenements with white flags on belongs to Sigma.

I definitely believe there is a huge potential in the area but from my point of view we should start to secure more land before is too late.

I'm trying to put together a list of mines with their resources and how many players are trying to get in this area...

So, I hope we manage to grab more land otherwise will be challenging to get to the same size as Sigma