Small Mining Operations
Cyanide-Free Gold Separation
February 2011 by Chris Ralph

A Few Methods for Sampling Hardrock Deposits

Gold in Guyana—Part II: Process Optimization at Sacre Coeur Minerals' Lower Puruni Alluvial Mining Project

Dredging The Outside Bend
This stringer was where it was not supposed to be, and it contained nuggets that were not supposed to be there.
Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length
If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.
Bering Sea Gold—Part II
In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...
Reminder: Annual Claim Filings Due
Please note that new mining claims filed on or after September 1, 2019, will be subject to the new fee schedule.
Hard Rock University: Expensive Hobby or Real Business?

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The Bawl Mill
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