Ask the Experts
October 2012 by Chris RalphHow does one determine who owns a mining claim?
I am trying to find any information about using bubbles to separate platinum from sands and small particles. I think it has to have a surfactant in the process. Do you know of this bubble tech?
Replacing cloth on a drywasher
Q: The Arizona BLM state office has started sending out registered letters to association placer claim holders...
• What's worth picking out of the pan besides gold?
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