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PGMs in California
September 2002 by Edgar B. Heylmun, PhD
The occurrence of platinum-group metals (PGMs) is rather widespread in California in placer deposits, but they are not of commercial interest as things now stand.
Legislative and Regulatory Update
As mentioned in last month’s column, California Assemblywoman Lois Wolk attached a rider to the pending budget bill. The rider calls for a new study (Environmental Impact Report) on the effects of suction gold dredging, funding for the study, and a two-year moratorium on suction dredging while the study is being completed.
Never Take Safety for Granted
In retrospect, I can now see that the thoughtless breaking of one of my safety rules regarding not dredging alone was to be a lesson I won’t soon forget.
Metal Detecting Old Hard Rock Mine Dumps
The type of mine dump that is best for metal detecting are the ones that consist of mixed sizes of rock and are located near some sort of excavation, commonly a shaft or adit. Sometimes the piles located along a trench dug by the miners can be productive as well.
High Court to Rule on Kensington Tailings
A case before the Supreme Court could set a precedent for how mining waste is disposed of in streams, rivers, lakes and even wetlands.
The Bawl Mill
• Even Navy Seals aren't safe from hackers
• Good news, bad news
Ask The Experts: Small-scale drilling
Q: What is available to a small prospector? How does one prospect (drill) into the walls of an old hard rock mine to see what is 10 feet beyond...
Ask The Experts
• A place for mining equipment "on the cheap"?
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The Bawl Mill
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