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Small Mining Operations

A New Method for Handling Stubborn Gravity Middlings

The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.

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Prospector's Guide to Rock Breaking and Blasting


The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.

Principles of Designing Your Mill Production System, Part II: Mill Design


Starting small with quick profitability gives you a lot of financial elbow room plus real-world experience that can be used for final mill design.

Addressing EPA Overreach: What Dredgers Need to Know


The Environmental Protection Agency (EPA) has been attempting to extend their authority and intimidate miners and other public land users for decades. Suction gold dredgers are no exception, and we want to highlight a recent example of how to deal with this federal overreach.

Conductive Minerals and Your Metal Detector


...most prospectors don't even think about the conductivity of minerals, but there are some that do conduct electricity to a certain degree, so metal detectors will respond to them.

Legislative and Regulatory Update


  • NEPA comments due
  • Update on latest US Supreme Court suction gold dredging appeal
  • Washington State tries to restrict suction gold dredging

Hard Work Pays Off On Hard Rock


They worked their plan, bit by bit, and sure enough, after the blast, gold was detected… Over two pounds of beautiful crystalline gold was recovered in that stretch!

Placer Mining At Chititu Creek, Alaska


There is reason to believe these stream valleys are still rich with gold, silver and copper.

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