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Happy New Year 2021!

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From the Editor


The past year was an extremely busy one here at ICMJ’s Prospecting and Mining Journal.

Ask The Experts - Conflicting assays for platinum group elements


Picks & Pans: Working the Crevices


The crowbar can be a valuable mining tool. Crowbars come in all shapes and sizes. For moving large boulders and large chunks of bedrock, the longer 3½ footers work well. Then if you really get in trouble, there’s the long pry bar.

Ask The Experts—Using classifiers


Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.

Enthusiastic Crowds at PDAC


Nearly 11,000 attended this year’s Prospector and Developers Association of Canada (PDAC) convention in Toronto. Joe Hamilton, president of the Convention Planning Committee, beleived he knew why the numbers were so high.

Prospecting for Copper


This article deals with copper exploration, but it is relevant to exploration for other minerals. I will use the geology of the Copper Creek area in Pinal County, Arizona, as an example.

Town Hall Meeting in Sierra City, California


I was invited to attend a meeting on April 7 in Sierra City, between Forest Service officials and a group of concerned area miners regarding what the miners described as abuses by the BLM and local Forest Service officials.

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The Bawl Mill   • Ask The Experts - Does steep stream bedrock act like riffles?   • Ask The Experts - Where do I register a mining claim in Nevada?   • Ask The Experts - Are eskers good locations for gold?   • Ask The Experts - Any tips for hunting down gold veins?   • Our Readers Say   • Dealing With Hot Rocks and Mineralization   • Principles of Designing Your Mill Production System, Part I: Starting Up   • Pay Attention to the Features and Landmarks   • Gold Prospecting for Better or Worse: All Work and No Pay   • Specialized Equipment Available for Hire   • Which Coil Should I Use?   • Northern Dynasty To Appeal Alaska Permit Rejection   • Our Old Friend, Mr. Crashbox   • Resolution Copper Project To Be Reviewed By Year-End   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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