Prospecting & Detecting
Ask the Experts
September 2014 by Chris Ralph
• Using drywashers to work desert gravelsDrywashing in Black Canyon, Arizona
May 2016After the hike and a quick snack break we gathered a few buckets of material to really dial in the drywasher for the most efficient recovery. This involves leveling the unit, setting the riffle box drop angle and regulating the speed in which the material is processed.
Following the Clues
It took me awhile before I finally got a nice mellow signal. My nugget turned out to weigh in about two dwt (pennyweight). Over the next few hours, we all picked up a few more nuggets apiece.
So Where's The Gold?
...we finally got back to this exploration effort. The old works there were up above the old camp, which was very significant in size.
A Long Dry Spell
Just three weeks ago one of our prospecting team members decided to go back to this location on his own. He had a new detector and wanted to try it out some.
Continuing Hard Rock Exploration
We had been picking away at it, but the going was mightly slow. Why not use some explosives to advance a little quicker?
Placer Channel Sampling
Sampling gold placers can be rewarding, but remember to treat the samples so you are not high grading or low grading your results. Learn the rules and apply them so your samples are accurate.
Confluence Placers
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
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