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Looking Back

Excerpts from CMJ published 50 years ago this month.

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Hardrock Prospecting in El Dorado County, California


Three times we went back and finally found a clue. There was an old air shaft not far from the trail!

Something to Consider When You Go Dredging


I have been a gold dredger for 9 years. The first dredge I bought was a 4-inch, with a 5hp engine. It had 15 feet of suction hose, a beat up regulator, a patched air reservoir, and floats that were sun baked and cracked—what a beauty. Vaughn and Darrel sold me this dredge, and could tell that this crazy “Canuck” was excited. We talked for many hours that first day I met them, and I was eager to learn...

Cedar Rim Opal—Discovery of a Giant Opal Field


In 2003, I initiated field reconnaissance of an opal deposit at Cedar Rim in central Wyoming and was amazed at the size of this undocumented deposit located right in the middle of an oil and gas field...

Oregon Governor Asks For Mineral Withdrawal


Conservation groups hope to meld the three wilderness areas and surrounding parts of southwestern Oregon into one big wilderness covering 1 million acres—a move Kulongoski has endorsed.

Looking Back


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

Ask the Experts


• Drones for the independent prospector

How Rich Must My Ore Be?


How rich does a hard rock ore have to be for it to be worthwhile to process and extract the gold?

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The Bawl Mill   • Over the Divide   • Our Readers Say   • Special Editorial: Gold Anti-Trust Action Committee Believes They Have the Evidence   • World Gold Council News   • Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits   • Picks & Pans: An Exciting Hobby   • Prospecting for Silver With a Geiger Counter   • The Furnace Atmosphere During the Fire Assay   • The Hanging Tree   • Gold in Chihuahua, Mexico   • ICMJ 10th Annual Photo Contest Results   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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