The best information I have heard is that in Venezuela (my country) they have just discovered the existence of an area of 6 kilometers in the mining arch (Bolivar State), which is the fourth largest gold mine in the world. As certified by the American company Gold Reserve, the mine has a reserve of gold and copper equivalent to 173,300 million Euros.
The strangest thing of all this is that Venezuela being a country so rich in minerals, today faces one of the worst economic crises.