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Prospecting & Detecting

Prospecting Underground: Use Caution

In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.

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Another Prospecting Adventure: Coulterville


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.

Green Valley Reconnaissance


During this trip we found enough gold to make us want to come back, even with the punishment of a very long, tough hike.

How to Stake Your Own Claim—Researching Mining Claims


Once you have determined that the land is locatable, the next step in the claim research process is to determine if the land has already been claimed by a previous locator.

Off to the Sierra Again


My Lucky Thirteen Nuggets


Even with my favorite top-of-the-line gold detector there were several false digs. Many of the hot rocks gave a solid signal that was too much like a nugget to ignore. After trying several tests I just dug everything because it is better to be safe than leave a big, deep nugget for a more diligent gold hunter.

New Research Tool for Miners in Wyoming


The Wyoming Geological Survey released an online interactive map...

All About Trommels and Screens for Placer Gold Recovery


The right speed accumulates only the heavy materials and allows all of the lighter stuff to flow through. This optimum speed is dependent on the size of the gravel you need to move through the system.

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