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Designing and Evaluating Placer Gold Recovery Plants

For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...

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Principles of Designing Your Mill Production System, Part I: Starting Up


One of the issues that prospectors run into when working to upscale from micro-scale hard rock testing to a greater production output, is that they often confuse individual devices or machines with systems.

Who is a Qualified Person?


So you think you have an ore deposit? The work has been long and hard, but there are a few drill holes, lots of samples and assays. The data is in a reliable computer and there may be a mine at the end of the tunnel. What is the likelihood of a profitable operation? Can you raise capital for development or exploration?

Heavy Glacial Rocks and Gold in the Midwest


Over the years, I've noticed a pattern in the type of rocks associated with the best gold deposits in Midwestern glacial gravel.

Nice Specimen Gold Recovered in Northern California


Each specimen is carefully examined to determine if it would be beneficial or not to use an acid treatment to reveal more of the gold.

PLP Update: Back to The 'Swamp' on Behalf of Small Miners


We spent the morning in a meeting with one of the higher-ups at the US Forest Service. I presented him with 412 complaints received from our readers, along with a summary of the complaints to make his job easier.

Putting Together A Small Free Gold Mill—Part II


There are many smaller old hard rock mines out there—more than you might think. There are some small hard rock properties that are even open to be claimed if one does the right amount of research to find them.

Small High-Grade Pocket Districts


…the excitement passed so quickly that little work was done, but they still have good potential, and I find they are not as well-known and not hit so hard by most prospectors.

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