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Company Notes

• U.S. Gold Corporation
• AZCO Mining Co.
• Canyon Resources Corporation
• Placer Dome, Inc.
• Vista Gold Corp.
• Grupo Mexico

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Legislative and Regulatory Update


  • Administration issues proposals to fix mining access and permitting
  • Online “webinar” and request for comments for proposed Forest Service NEPA revisions

Ask The Experts—Precious metals in water?


How can I determine if there are precious metals in the groundwater?

Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

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.

A Unique Prospecting Method


In 1948, I lived alone in the Cerrillos Mountains south of Santa Fe, New Mexico, at the Tom Payne Mine. When lead and zinc metal prices suddenly took a nosedive, our ore and concentrate shipments from the Payne to the ASARCO smelter...

Getting The Most Value From Your Gold-Quartz Specimens


Just simply crushing up all your specimens for their gold content may be a serious waste of potential cash.

Lode or Placer: What Difference Does It Make?


This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.

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The Bawl Mill   • Over the Divide   • Our Readers Say   • Letter from the Editor to our Readers and Advertisers   • Administration Considers Bypassing Congress   • First Woman to Draw Mining Pension   • Small Mine Selective Blasting   • Mohave Mountain Placers, Arizona   • High Court to Reconsider Wilderness Water Rights   • Sixteen to One Takes on MSHA   • Picks & Pans: Gold Mining on Joie Osgood Ranch   • Gold   • Millie's Tailings   • Placer PGMs in Alaska   • Mogollon—New Mexico's Remote Gold Camp   • ICMJ 9th Annual Photo Contest Results   • The Other Minerals of Mt. Diablo   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • Looking Back

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