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Spanish Silver in Arizona
October 2001 by Edgar B. Heylmun, PhD
When Spaniards entered what is now Arizona, they encountered diggings made by Opata Indians. The Opata Indians, who now live and mine in the northeastern part of the state of Sonora, Mexico, were one of the few Indian tribes that was...
Pot Hole Gold
It was early in the 2008 season on the Mokelumne River near Pine Grove, California. Considering the potential for high water through the month of June, my wife Fran and I set our sights on investigating some of the pot holes in...
Determining the Amount of Gold in a Quartz Specimen
Many prospectors who find specimens of rich quartz with visible gold often wonder about the gold content of their specimens. Pieces with significant visible gold can sometimes be found at hard rock mines, by prospecting...
Legislative and Regulatory Update
• Bush probably could take back monuments. But would he?
• Oregon Group Needs Your Help
• Critical Habitat Proposed for California Red-legged Frog
Mojave Desert Gold
The Mojave Desert is located in southeastern California, southern Nevada, western Arizona, and northern Sonora. Geologically, its western boundary is marked by the San Andreas and Garlock faults, but elsewhere, the boundaries are...
The Art of Finding Coarse Gold—Part III
In the first part of this article, we took a look at the special geology required to form coarse gold. In the second part, we looked at field examples of coarse gold occurrences and the geology of residual placers.
Is It Time for a Change? New Ways to Find More Gold
The old report I read indicated all they ever did was dig some trenches and take samples. It sounded to me like a good place to take my metal detector...
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