Rediscovering Placerville, California Part II
March 2011 by Don RobinsonTo get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
I like to think in terms of “conductive mass” because it is a combination of both the conductivity of the metal and the size of the target that determine how a detector sees conductivity.
We all continued over to another location at the top of a massive placer operation. Arriving at the draw, I showed everyone where gold had been found before and we all began detecting.
This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.
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.
Some media outlets have speculated the hoard of coins came from a theft at the old US Mint in San Francisco that was reported in 1901.
The Bawl Mill • So You Want To Be A Full-Time Prospector? • Ask The Experts—Do I still have rights to this mining claim? • Ask The Experts—What is a "closed" claim? • Eastern Arizona: Gold and Base Metal Deposits Part II • Prospecting With The Help of Fluvial Geomorphology • Oregon Anti-Dredging Bill • Mud Men: Pocket Miners of Southwest Oregon Part II • The Gold of Plumas de Oro • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices