Prospecting & Detecting
How Deep Can That Detector Go?
April 2021 by Chris Ralph
Knowing how to get the greatest depth performance out of your detector can be a handy thing, but it’s not an easy, simple matter.
Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Proper Spacing of Placer Sample Sites
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
Gold Geochemistry: Where Does Gold Come From?
Prospectors often wonder why gold deposits in veins like it does. Why is one vein rich while another is barren, even though they are only a few hundred feet apart?
Prospecting on the North Yuba

Crisson Gold Mine Robbed At Gunpoint
The suspect brought a duffel bag with him that he filled with two employee cellphones, wallets, cash from the register, gold nuggets and several trays of jewelry.
Paperwork Guy—A Cautionary Tale
I recently grew complacent, and it caused me to make a mistake that resulted in the loss of a mining claim. It brought my mining plans for the summer to a complete halt.
Ancestral Yuba River Placer Gold Deposits
The small-scale miner has reasonable opportunity to exploit some of these small, rich placer gold deposits.
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The Bawl Mill
• Ask The Experts - What is the “blue lead?”
• Ask The Experts - Can an Ohm meter find gold in pyrite?
• Ask The Experts - Can you tell me about this mining district?
• The 10-Ton Boulder: Expanding Grout Demolition
• Simple Mine Surveying With Basic Hand Tools
• Dredging Do's and Don'ts
• Emails Confirm--FBI Was Looking for Gold at Pennsylvania Dig Site
• Gold Prospecting for Better or Worse: Tuck and Roll
• Preparing For The 2021 Mining Season
• Drywashing for Desert Gold—Part III
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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