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A Guide to Overlooked Gold Deposits—Part IV

Trends are geologic situations in which the geological structure of an area is conducive to the deposition of minerals. These structures are generally fault systems that can be small and localized or can run for miles.

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Ask the Experts


How do mines and refiners deal with doré bars?

The Bawl Mill


• Forgotten words...
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• Master of words...
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• Fighting words...

Hecla to Reopen Lucky Friday Mine


Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.

Mineralized Calderas in Colorado


A caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.

Our Readers Say


• Prospecting for Diamonds in Kimberlite by W. Dan Hausel
• Miners referring to their activity as “recreational”

Looking Back


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

Wild and Scenic Rivers Act (P.L. 90-542, as Amended)


Just about all of us have heard the term “Wild and Scenic Rivers,” and we’ve likely been on one or several of them in our prospecting ventures. More than once someone has said to me “...but that’s a wild and scenic river.” My first question has always been, “What part of the system is it? Is it classified wild, scenic or recreational?”

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