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U.S. Dept. of Interior Inspectors in Arizona

Glynn Burkhardt, president of the Arizona Small Mine Operators Association, has a small mine outside of Tucson, Arizona. He recently received a visit from U.S. Department of Interior...

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Ask The Experts—Difference between a Geiger counter and scintillator


Would you explain the difference between a Geiger counter and a scintillator and how they operate in uranium prospecting?

Ask The Experts - Should I be seeing black sands in the tailings of my sluice box?


Discovery of the Silver Bullets


In 1926, Carl W. Chilson wrote the authentic history of his family and the discovery of the legendary Apache Mine of the Silver Bullets. The story starts out in 1868 when Steve L. Chilson leaves Bandera, Texas, with his family en route...

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Market for scheelite concentrates?

Legislative and Regulatory Update


• California suction dredging
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Proper Spacing of Placer Sample Sites


The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.

Bawl Mill


March 2023

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The Bawl Mill   • Group Sues Feds Over New Nat'l Monuments   • Tribe Joins Idaho in Roadless Suit   • 10,000 Shovels Back Protest   • Letter to the Editor—From Mike Miller, President, Original Sixteen to One Mine   • Wyoming Tops in Royalties   • Sunnyside, Arizona   • Evaluating a Placer Discovery   • Company Notes   • Treasures for Sale   • "Gold" Coin Debuts   • Picks & Pans: Prospecting at Mills Creek, Alaska   • Delamar District, Nevada   • Millie's Tailings   • Adventure at the 420 Level   • Looking Back   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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