Large Scale Mining
Round Mountain, Nevada
May 2014 by Chris Ralph

Care and Lubrication of a Model 13 Laboratory Wilfley Table

An Update On The Father's Day Gold Discovery
Just recently, the miners hit another big pocket, this time with nearly 1,000 ounces of gold. Some of the rich specimens were as big as a fist and others were in the form of smaller pieces.
Time to Come Home
The need to bring mining back to North America is more urgent than ever.
Prospecting for Copper Ores—Part II
Copper is a critically important metal that we need to run our modern electronic society, and the long term outlook for this metal is for a steady increase in price.
Lithium Fuels Hopes Around Salton Sea
The lake is at the southern tip of the San Andreas Fault, which has shifting tectonic plates that bring molten material closer to Earth’s surface. The only other part of the US known to have more geothermal brine available is on the fault’s other end in Northern California.
Mohave County, Arizona: The Oatman/San Francisco Mining District
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.
Prospecting for Copper Ores—Part I

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