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Centrifugal bowls versus jigs

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Moving The Big Rocks


The anticipation of finding out if the system of snatch blocks, shackles, chokers, anchor points, and the strap binding the massive slab of rock in the bottom of the river would even budge an inch was weighing on me. 

Wyoming's Billion Dollar Nugget—The Trilogy Ends


Our testing over the past 15 years was to confirm or deny the USGS report completed in 1978. Besides the half acre test dig, we completed many additional test digs by hand and with the backhoe.

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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NOI or POO for small backhoe

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.

Gold Dredging on Oregon's South Umpqua


Familiarizing oneself with an unfamiliar part of the country is often a requirement of successful gold prospecting. In the pursuit of gold, it may become necessary for a prospector to branch out into new hunting grounds.

River Dredging vs. Creek Dredging—Part II


While river dredging in fast water, don’t be afraid of being swept out of your dredge hole by the current. If this happens—and it most certainly will in fast water—there is no need to panic. Don’t try to swim against the current because you will waste much energy in an effort to conquer the river. Just let it take you downstream.

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Bawl Mill   • Ask the Experts   • Conductive Minerals and Your Metal Detector   • A Model Mining Operation   • BLM Raises Location and Claim Fees   • I Finally Made It to Northern Nevada   • Clarification on Oregon's SB838   • Drilling for Ore   • Sniping for Drought Gold   • Successful Rally for Suction Dredge Miners in Idaho   • Over the Divide   • Gold Ores of the Delamar District, Nevada   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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