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The Tangential Impulse Water Wheel in California Gold Mining History—Part I

The modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.

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Using Google Earth and Other Maps


Last month, one of our readers requested an article regarding the possible use of Google Earth for prospecting research. It was a good idea, so here it is.

Massive Sulfide Deposits in Oregon


This article deals with massive sulfide deposits in the Klamath Mountains of southwestern Oregon, but it applies to massive sulfides found in California as well.

What About Palladium?


Palladium may well be an underexplored element and therefore an opportunity for prospectors and geologists. This is because they are often less than obvious and other than the native metals, a chemical analysis of samples is required to identify PGM-enriched rocks.

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I stared out across the Yukon River. I estimated the river at this point to be a mile wide. An occasional log floated by in the tan-colored water.

Washoe County Balks at Black Rock Desert Plan


The Washoe County Commission raised concerns about Sen. Richard Bryan's tentative proposal to protect the Black Rock Desert...

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