Large Scale Mining
Mohave County, Arizona: The Oatman/San Francisco Mining District
July 2019 by Dean Delahaut
The Oatman/San Francisco Mining District’s historic gold production of 2.2 million ounces of gold since the 1880s makes this area Arizona’s greatest primary gold producing district.
Canadian Company Recovers 1,111-Carat Diamond
It is the second largest gem-quality diamond in history, after the 3,106-carat “Cullinan Diamond” was recovered in South Africa in 1905.
El Tigre—Unlocking Values in Tailings to Jumpstart a Mine
...El Tigre Silver Corp, is taking a somewhat different path toward developing their El Tigre property located in the northern Mexican state of Sonora.
Silver Boom Prompts Idaho Mine Expansion
The Lucky Friday is already one of North America’s deepest hard-rock mines. Now, the 62-year-old mine is about to get much deeper.
Sixteen to One Gold Mine: Unique Challenges and Potential Rewards - Pt I
Many of the Sixteen to One’s challenges arise from its unusual geology and the pocket characteristics of the ore deposits.
A Third Generation Small-Scale Hardrock Revival
One of his friends had 700 feet of small-gauge mine track and a hundred-year-old track bender laying out in his back 40; plus he also wanted to join the team. Perfect.
Northern Gold Mining's Garrison Gold Property
During our visit during late May, 2011, the vertical nature of the mineralized areas was clearly visible, as were numerous examples of quartz-carbonate veins in shear zones, faults and folds.
21st Century American Gold Rush: Rare Earth Elements
The burning question I needed answered was why didn’t the deposit ever get mined of at least one of the valuable minerals? A couple of reasons have come to light.
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