The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
July 2007 by Chris RalphHardrock mining is usually done on a large scale, and although a few small-scale hardrock operations still exist, it’s not an easy operation to start up and run profitably.
The Northern Ontario city of Timmins is famous for many things including the fact that the Timmins Mining Camp has been among the most prolific gold mining areas in the world with total historic production of near seventy million ounces since...
"The President's plan to lock-up an additional 40-million acres of wilderness in 35 states, is a blatant step toward the total implementation of the aims of the unratified Convention on Biological Diversity."
Mexico is a large country, much larger than the state of Alaska. It is almost as long as the US is wide. It has climates that range from tropical rainforests in the south to barren deserts in the north. The Sierra Madre is a forested plateau that reaches elevations in excess of 10,000 feet. It parallels the west coast of the country.
When he got home that night, he looked at the plotted points of gold and trash he had dug and saw that there was a distinct line where the gold nuggets were being found.
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Each specimen is carefully examined to determine if it would be beneficial or not to use an acid treatment to reveal more of the gold.
The winter cold and snow bring with it an entirely different approach to prospecting and mining. Northern California was buried with a ferocious storm in late December and early January that knocked out power for many small towns and buried the...
The Bawl Mill • Ask the Experts • More Tips for Evaluating Ores • The Mountain Gate Mine • Oregon Suction Dredge Permit Update • In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill • Life in the Alaska Gold Rush • More Small-Scale Miners Attracted by Gold Prices • Gold in New Zealand • Ready “Ore” Not, Uranium Boom is On Again • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back