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Alluvial Fans

Alluvial fans are essentially dry land “deltas” which can be found in all climates. However, they are best developed in arid and semi-arid regions, where they may be many square miles in area. They are built up by outpourings of silt, sand, and gravel caused by seasonal run-off, as well as by boulders and cobbles carried by flash floods.

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Understanding Geologic Deposit Models


Geologists have long noted the similarities of certain types of mineral deposits all across the globe. Similar minerals, similar country rocks, and similar grades of mineralization may occur in several different parts of the world.

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Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

EPA Offers Liability Protection to Spur Cleanups


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Gold mining has received many black eyes from many scams, scammers and schemes throughout the years. Unscrupulous scammers have swindled naive people for millions of dollars in the past and will, no doubt, continue into the future.

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