The PIGMI—a DIY Crevice Tool
April 2017 by Tom LeftwichI’ve had great success using it to gather gold from crevices. I’d like to share the design with all of you gold miners reading this article and hope that you get as much satisfaction building and using it as I did.
My intention was to end this discussion with waypoints and routes, then I found USGS maps of the Plainfield Quadrangle.
My wife Dorothy has always enjoyed tent camping. She thought she was really roughing it at established campgrounds until I convinced her to take a trip with me to drywash for gold in a remote corner of an arid desert wilderness...
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
What also helped keep Coulterville alive was the fact that the town itself happened to be sitting on top of one of the richest veins in the Mother Lode. The ledge itself was three hundred feet wide.
The amount of gold in the traces from the low-grade scattered veinlets may be much more than the traces from the small but rich pocket, at least until the pocket hunter closes in on the rich pocket. Further confusion arises if the prospector stumbles across a placer deposit on one of the higher peaks.
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
Then I came to a section of recently exposed gravel that looked unworked. Water seeped out all around, making the ground beneath a sea of slick mud.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts: Is an XRF gun useful for prospecting and mineral identification? • Ask The Experts: Is this deposit worth working? • Ask The Experts: Can a long range locator probe detect gold in quartz? • Weathering, Erosion and Placers • Diary of a Diamond Prospector • The Ups and Downs of Nugget Hunting • Epithermal Gold and Silver Deposits • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices