Since the room is almost asleep, I am forced to post from my notes again, first Coffee or Teas.

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You asked about the Rio San Lorenzo placer, frankly it is loaded from start to exit. It cuts through a large country which is highly mineralized and has many very commercial Gold Placers in it's course, still basically unexploited.

The one we will talk about is where it cuts through the mt range between Sinaloa and Durango. In doing do, it
scoured the mt to the north which subsequently had a Gold rush in it's exposed veins. It was so rich a discovery that it had hundreds of small miners working there. It even had gold buyers setting up shop at the base of the Mt.

Well since the Lorenzo had cut off perhaps 1/3 of this mt, it also collected tremendous amounts of gold, plus what it was bringing down from Durango. As it flowed out into the relatively flat lands with a series of oxbows, it started to lose it's ability to carry the heavy gold and so started to develop the almost continuous placer deposts.

In the late30's the area was subjected to a heavy drought, and the Lorenzo almost dried up. A group of the miners, whose claims had petered out decided to explore the possibilltes of a placer being formed in the Ox bows.
They were shocked to find an almost continuous chain of extremely rich Gold Placers, running around $1 a cubic meter.

Converted crudely to todays recent Gold prices, this is equivelent to aprox. $50 a cubic meter today.

Since it would involve heavier equipment than they had, they decided to go looking for a Backer. They went to Nogales and eventually had several interested partners from the US, but just as things were jelling, due to the outbreak of the war, the US practically banned all mining except for critical needs, it was halted even though it was in Mexico..

So there it sat, but after the war it was never bought bk to life. Casual investigation found that the original party had drifted apart during the war, many had died, and for one reason or another no one ever appeared to reopen the project.

Crude investigation shows that probably all are now dead and this information was lost until I became the mill foreman / assayer up on top and became interested in where the gold went after cutting down the Mt.
Y

So there are many top proects in Mexico, but we only have one Jim and limited funds.

Don Jose de La Mancha