Small Mining Operations
PLP and MMAC Update
January 2018 by Scott Harn
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...
The Miner’s Switchback
Common thought is the switchback slows the velocity of the rushing water and gold drops out from the cut bank to a fill gravel bar within or below the switchback. I am not going to disregard that model; however, I hope to improve upon it.
Hard Rock Milling: A Matter of Scale
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
Small-Scale Hard Rock Production
So far this year we have recovered over three pounds of gold and the hard rock veins seem to go on forever. We now have three claims that can produce good enough gold to set up a productive operation.
One of the Richest Beaches Ever Mined
Everyone has heard of the golden beach at Nome, but Nome did not have the richest beach.
California Dredgers: A Step Closer to Getting Back in the Water
...Judge Ochoa ordered the parties to participate in mandatory settlement hearings starting June 24, 2014.
Gold in Guyana—Part II: Process Optimization at Sacre Coeur Minerals' Lower Puruni Alluvial Mining Project
In Part Two of my two-part series I describe the mechanized alluvial gold mining operation on the lower Puruni River launched by Sacre Coeur Minerals in 2011.
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The Bawl Mill
• Legislative and Regulatory Update
• California: The Land of Big Nuggets—Part II
• How to Interpret Assay Values
• Bedrock Nugget Hunting: Tools of the Trade
• A Primer on Bitcoin and Other Cryptocurrencies
• Gold Hunting on Libby Creek
• Man's Best Friend
• An Interview with Minelab Engineer Mark Lawrie
• Third Largest Nugget in Existence Returns to Dallas
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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