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How California Became the Golden State


On the morning of the 19th of January, 1848, Marshall went out to examine the cut and inspect the progress that had been made overnight.

Ask the Experts


Q: How do metal detectors work around precious metal ore bodies?

Bering Sea Gold—Part II


In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...

Here Come the MineBots


In March 2004, Vulcan, a mine exploring robot from the Discovery Miner Program, was shipped to the Vulture City region to investigate the conditions of an abandoned hard rock mine. The shaft was typical of the dangerous mines that are...

Underground at Yankee Jim's


In 1849, the story spreading around the Barnes Store (on the North Fork of the American near Colfax, California) was about some rich diggings being found up in the hills going east, and not very far up the ridge according to some accounts.

Legislative and Regulatory Update


  • EPA ends "sue and settle"
  • Sage grouse mineral withdrawal cancelled

More Tips for Evaluating Ores


Tabling and jigging are two relatively inexpensive methods for recovering the “free particle values” from the noble metal ores. However, not all ores contain their values as free particles. In fact, many ores contain appreciable amounts of “metallic salts” that readily dissolve in one’s system water and continue to migrate right along with this water.

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The Bawl Mill   • Mining Claim Fees Are Going Up   • Our Readers Say   • Buell Park Pipe, Arizona   • Mines and Money   • Understanding Hard Rock Mining: Terms and Methods—Part II   • Two Nevada Mines Look to Supply Own Power   • Paleontonlogical Resources Preservation Act   • Picks & Pans: Mexican "Edventure"   • Over the Divide   • Flat-Fault Gold in Sonora, Mexico   • Looking Back   • The Fern Mine   • Map Offers Look at Butte's Mining History   • Gold in China   • 2004 National Mining Hall of Fame Inductees   • Melman on Gold & Silver

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