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Prospecting & Detecting

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.

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Prospecting The East Fork San Gabriel Canyon, Southern California


I have found gold more than 200 feet above the river. It was not unusual for nuggets of an ounce or more to be found in these deposits, but fine gold and flakes are much more common.

Fortymile, Alaska Prospecting Adventure


Some creeks have nuggets, while others, particulary the rivers, nothing but fine gold.

The Highs and Lows of Drywashing


We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.

Prospecting Hard Rock


We panned out maybe three gold pans of the material and we were shocked at the gold that was there. This rock appeared to be rich.

Speed Prospecting for Hard Rock Gold


An online video gave me some ideas, and with a lot of trial and error I developed a reliable method of panning free gold particles down below 35 microns quickly and easily.

The Gold Of Horseshoe Bend


And we eventually reached gold. It was a winding crevice of beautiful white quartz lined with small nuggets and loaded with fine gold. There were flakes and small granular pieces—there had to be a hundred or more.

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The excavator or backhoe has become the tool of choice for testing placer ground. These machines are the best way to explore and sample a placer deposit if the ground is not too wet or frozen and bedrock is not beyond the reach of the machine.

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The Bawl Mill   • Legislative and Regulatory Update   • Ask The Experts - How are gold veins formed?   • Ask The Experts - Is there gold in Monterey County, California?   • Ask The Experts - Can you explain NMR and satellite imagery?   • Ask The Experts - What other indicators are there besides red soils?   • Mineralization, Ground Balance and Metal Detecting   • Gold Prospecting for Better or Worse: Warning Signs   • What To Do With All That Gold?   • Proposed 100-Mile Road in the Yentna Mining District   • Judge Orders FBI to Produce Records on Civil War Gold Hunt   • Strategies for Detecting Heavily Pounded Areas—Pt II   • Auburn, California   • Old Water Channels Provide Important Clues   • The Mystery of the Grand Summit Mine   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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