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A Guide to Overlooked Gold Deposits—Part III
November 2003 by Lawrence Dee
Most of the old large gold dredging operations used a trommel. The trommel consisted of a long metal cylinder made of heavy punch plate in which the small gravel, black sands, and gold would fall though holes and end up in banks of sluices.
Additional articles that might interest you...
Time for a New Approach: Detecting Float Gold
September 2013
The first pieces found were in a spot that most gold hunters would not even detect, right in the middle of a downslope meadow.
The first pieces found were in a spot that most gold hunters would not even detect, right in the middle of a downslope meadow.
Ancient River Channels of Trinity County
June 2013
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
The Idaho Gamble Part 1
May 2023Gold Recovery with Centrifugal Bowls
July 2014
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
Gold Near Boulder, Colorado
July 1999
Several mining districts near Boulder, Colorado mark the northeast end of the 240-mile-Iong Colorado Mineral Belt, which cuts diagonally across the Rocky Mountains.
Several mining districts near Boulder, Colorado mark the northeast end of the 240-mile-Iong Colorado Mineral Belt, which cuts diagonally across the Rocky Mountains.
Placer Gold in the Ortiz Mountains
January 2009
New Mexico’s Ortiz Mountains rise in irregular volcanic peaks above the surrounding plains, or llano, some 30 miles northeast of Albuquerque and about 14 miles to the south of my home outside the state capital of Santa Fe.
New Mexico’s Ortiz Mountains rise in irregular volcanic peaks above the surrounding plains, or llano, some 30 miles northeast of Albuquerque and about 14 miles to the south of my home outside the state capital of Santa Fe.
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