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Looking Back

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

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Estimating Gold Values in Placer Gravels


The single most important question to be answered when evaluating a placer deposit is: “How much is it worth?” Accurate sampling of placer gravels is essential to obtain a reasonable estimate of the total gold values contained in the deposit.

Sluicing and Detecting Downstream


…early last fall, I found my first gold-rich patch along a few crevices in the same river and found five grams of gold nuggets in one outing.

Crumb Hunting With A VLF Detector


Chris got a nice target signal on the edge of rising bedrock, but still in a low, but washed area. After breaking up the bedrock, he recovered several pieces of gold amounting to almost three pennyweight.

The Greenwood Gold Project


The Greenwood Gold Project, comprised of a newly-constructed mill and tailings facility utilized in processing ore from the Lexington-Grenoble, Golden Crown and Lone Star deposits, is situated in a mountainous area spanning...

Carrizozo Lava Older Than Once Thought


The Valley of Fires lava flow outside Carrizozo is older than previously thought. In geologic terms, the central New Mexico volcanic feature is still a youngster at 5,000 years old. But that's considerably older than the 1,000-year-old tag scientists once placed on it...

Mining Claims—What to Know Before You File


During the initial assessment year (the year of location), the claim maintenance fee must be paid at the time the notice of location is filed with the Bureau of Land Management. Failure to pay the claim maintenance fee will void the claim.

Mining Stock Quotes and Mineral & Metal Prices


Subscription Required:
The Bawl Mill   • Editorial: Montana's Controversial Rock Creek Mine   • First Load of Concentrate Leaves Reopened Ruth Mine   • Uranium Industry Enjoys Rebound as Prices Nearly Triple   • BLM Warning About Purchase of Mining Claims on the Internet   • Determining the Amount of Gold in a Quartz Specimen   • Placer PGMs in Coon Creek, California   • Getting Your Float Circuit Layout Right   • Pick Up Austria's New Coin—If You Can Lift It   • New Prospecting Guides Available Online   • Police Extend Detention of Newmont Executives   • Picks & Pans—Drywashing and Detecting in Southern California   • Over The Divide—Merwin (Merv) H. Hemp   • The Boludo Placers, Sonora   • The Golden Highway—Placer County   • Northwest Miners Rally a Success   • Mine Threat Just a Stunt to Criticize Land Laws   • MINExpo 2004 Convention Report   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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