History & Geology
Gold of the Iditarod Mining District, Alaska
March 2014 by Steve Herschbach
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Understanding Rock Formations: Petrology for Prospectors
There are times when being able to recognize a type of rock can make you a much more successful prospector.
Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Another Prospecting Adventure: Coulterville
What also helped keep Coulterville alive was the fact that the town itself happened to be sitting on top of one of the richest veins in the Mother Lode. The ledge itself was three hundred feet wide.
The Beatty Mining District of Nevada
The Beatty Mining District in south-central Nevada has been one of the most productive Mining Districts in the state, producing millions of ounces of gold together with silver, fluorite, mercury and other valuable minerals.
Gold in the San Francisco District Oatman, Mohave County, Arizona
![](http://www.icmj.com/userfiles/images/201312/TOC-AZ-SAN-FRAN.jpg)
Gold in Tertiary Gravels
![](http://www.icmj.com/userfiles/images/201511/tertiary-gold.jpg)
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