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Uranium Deposits

The first reported occurrence of uranium in the United States was at Central City, Colorado, in 1871. However, prior to 1922, the ore was mined for its radium content, not uranium.

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More Treasure From Sunken Ship


Gold chains, silver coins and bars of solid gold glittered in the tropical sun as the family of famed treasure hunter Mel Fisher showed off another significant find from a sunken Spanish galleon.

Looking Back


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

The French Mines of El Boleo


Volumes have been written on the subject of mining in Mexico ever since the first Spanish conquistadors undertook to strip bare the newfound land in the 6th century. Gold and silver, which attracted Cortez and the Spanish Inquisition, was there for the taking, and the fabulously rich mines of Guanajuanto, San Miguel de Allende, Zacatecas, Real del Monte, San Luis Potosi, Durango and Taxco, among others, became famous throughout the New World and Europe.

Silver at Calico, California


Silver was discovered in the mountains as early as 1875, but the first “official” discovery was in 1881.

Platinum Placers and Nuggets


Sometimes a placer miner will find small bits and nuggets of metal associated with gold and other heavy minerals in his concentrates, which exhibits a silver-gray color rather than the normal tones of gold.

Pumping Water With Solar Power


Solar energy can be used for any size placer or hard rock mining operation. It is most practical for small and longer-term operations provided your mine is not located in a dense forest.

MMAC & PLP Update


We definitely got their undivided attention with our presentations. As a direct result of our presentations, the Desert Advisory Council recommended a Memorandum of Understanding be put together between the council and the Rand Mining District. This MOU was recently completed. 

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