Small Mining Operations
The 10-Ton Boulder: Expanding Grout Demolition
April 2021 by John Norman
Imagine you have located a source of virgin placer ore containing immense gold value. Now imagine that there is a 10-ton monolith of extremely hard gneiss in between you and payday.
Reality of the Klondike
![](http://www.icmj.com/userfiles/images/201201/TOC-klondike.jpg)
Spanish Gold Ledge Still Producing Gold
The Gold Eye placer claims, located in the La Cholla district of Arizona, are still producing some beautiful gold. From the days of the Spanish explorers and Mexican miners, men have tunneled into the earth in search of gold in this area.
How to Use BLM’s New Mineral and Land Records System
This new map-based tool is far superior to the old version with lots of potential layers and information that a prospector can use in research.
Gold Dredging on Oregon's South Umpqua
![](http://www.icmj.com/userfiles/images/201211/TOC-dredging.jpg)
The Dredge Report
![](http://www.icmj.com/userfiles/images/201411/19-dredge-gold.jpg)
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.
Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
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