History & Geology
Gold From Cemented Gravels
November 2011 by Chris Ralph
The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.Prospecting Homonyms

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.
Gold in Quartz

Strategic Metals—Part II

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.
Historic Dredge Uncovered in North Carolina
The Robinson is a wooden bucket-line dredge that was built in the early 1900s in New York and shipped in pieces to Nash County in North Carolina by train for reassembly.
The Goldfield Mining District -- Then and Now

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The Bawl Mill
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• Alaska to Target Rare-Earths
• Minnesota Delays Decision on Mineral Leases
• Alaska's Cripple Creek Mining District
• The Gold Of Horseshoe Bend
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Are Permits Needed For Highbanking In California?
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