History & Geology
Fabulous Florence—The Golden Town of Idaho
May 2012 by Alan Trees
In September 1861, on a round-about prospecting journey homeward, five California gold miners discovered gold in the area now called Florence. While watering the horses, one of the men noticed a golden color on a piece of slate bedrock in the stream...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.
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.
Gold Depositiion and Gradients of Placer Streams—Part II
The steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.
Jamestown and Our Mother Lode Gold Rush Adventures
There are many other locations in the area where gold has been found, but Woods Creek is the most famous of the creeks and gulches in the area where the 49ers searched for that elusive yellow metal.
Las Médulas—The Gem of the Roman Gold Mines
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
Understanding and Prospecting Benches
The most obvious benches are usually near the valley floor, but they can be thousands of feet above the valley floor. Since benches were made by streams, they can contain placer deposits.
Alaska's Cripple Creek Mining District
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.
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The Bawl Mill
• Ask the Experts: gold per ton; improving assay method
• Bering Sea Gold—Part II
• Tucson Show Marketing
• Ganes Creek Hits 10 Years—Part I
• Arizona's Vulture Gold Mine and Lost Dutchman
• Critical Metals: Copper
• Replacing Your 12-Volt Pump
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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Legislative and Regulatory Update
• Ask the Experts: Ionizing mercury
• El Tigre—Unlocking Values in Tailings to Jumpstart a Mine
