""Now as far as the type of Gold their getting is very pure indeed. Close to the source I think.""
Have I missed something over the years? I was always under the impression that the gold purity was set when it was deposited in the parent rock. Weathering out of the rock should not have any great effect on the purity.
Would gold even react (amalgamate) with cinnabar? That's all I can think of that might effect the purity.
"In May 1901 the Congress Mine was visited by then President William McKinley on a tour of the country. The tour was orchestrated by Arizona Territorial Governor Nathan Oakes Murphy and brother Frank M. Murphy, who had re-acquired an interest in the Congress Mine."
:o)
I remember seeing a small bag of gold or two Bonz had collected back in 2011. Not sure what happened to those pics...