Conrey Dredge No. 4
November 2017 by Don Madore
The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.
My partner had the contacts and it wasn’t long before we had an agreement in place and the company had a geologist on site. I recall a time when he was getting the lay of the land, so to speak, and he broke off a rock sample and inspected it with his magnifier.
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
Mining “giant” John A. Miscovich died August 22, 2014, at the age of 96. He was the well-known inventor of the “Intelligiant” water cannon.
Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.
One of the most important things prospectors do is work to figure out where to go prospecting. Along with understanding the basic geology and putting yourself in a favorable area, one of the things a prospector might consider in finding a location to search is the existence of mining belts also known as mineral deposit trends.
The nugget sat there in plain sight, though it was covered in dirt, while hundreds of people had passed that way every day.
Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts - How do I work this glacial deposit? • Ask The Experts - How do I best recover gold in pyrite? • It Pays to Know Your Bedrock • BLM Cancels 10-Million-Acre Sage Grouse Mineral Withdrawal • Take it to Bedrock • The Beatty Mining District of Nevada • Flood Plain Gold Deposits—What Are They Really? • Exploring Iron Oxide Copper Gold Deposits • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices