All Articles
In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill
July 2007 by Mike Lowen
In 2005, my wife and I, along with our supervisor Horacio, made numerous business and supply trips from Arivechi, Sonora, to the capital of Sonora, Hermosillo. This is a distance of 135 miles along a very narrow paved mountain road.
The South Pass Gold Placers, Western Wyoming
In the 1980s, I spent 5 summers living in a tent in order to map the 450 mi2 South Pass granite-greenstone belt and many of its historic mines. While mapping, I was quite impressed by the general lack of development of lode gold deposits.
Picks & Pans: George Duffy Jr.—Pocket Miner Extraordinaire
During the Miocene and Pliocene mid-Tertiary Epochs, the Great Basin, Mojave, and Sonoran deserts within parts of California, Nevada, and Arizona became the source—the genesis—of ubiquitous epithermal “precious metal” fissure-gold veins associated with extensive acidic volcanic lava flows that blanketed much of the Cordillera during this time.
The Bawl Mill
• Unsustainable is an understatement
• Famous last words...
• Their good deed did not go unnoticed
• Truth in Advertising
The Geology of Diamond Deposits
New theories have been developed and they may lead to new discoveries and give prospectors some new insight on where to look for diamonds.
Melman on Gold & Silver
What a start to the year! In just the first two weeks of 2008, we saw the price of gold explode to the highest levels in history at $900 per ounce, Crude Oil reach $100 per barrel, some of the world’s largest financial institutions collapse in market value, unrest spread in Pakistan following the assassination of Benazir Bhutto, the worst jobs report from the Department of Labor in at least two years and the continued erosion of residential real estate values.
Placer Gold Deposits of New Mexico
While a large number of locations have yielded some placer gold, most of the state’s placer production has come from a few productive districts.
Nevada's Lithium Boom
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
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The Bawl Mill
• Ask the Experts
• More Tips for Evaluating Ores
• The Mountain Gate Mine
• The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
• Oregon Suction Dredge Permit Update
• 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
