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Prospecting & Detecting

The Subsurface Suction Dredge

The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...

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Metallic Trash—Scourge of the Prospector


I had been busy representing the Prospecting and Mining Journal this spring, but prospecting season finally arrived and I’ve been out digging for nuggets—I’ve even found a few. I know a number of prospectors who are armed with new metal detectors and headed to the hills to look for that precious yellow stuff.

Gold in Unlikely Places


Detectors have been around for decades now. And with thousands of them swinging, many of the best or at least most likely nugget places have seen a swinging coil. The part that amazes me is that so many nuggets still get pulled out of these seemingly pounded places.

It Pays to Know Your Bedrock


On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.

Rediscovering Placerville, California Part II


To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.

Practical Advice for Milling Hard Rock Ores


The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.

How to Stay Safe While Prospecting


Drywashing for Desert Gold—Part III


If the material drops down out of the hopper too fast, it can overwhelm the riffles and you can blow the gold right out. If it runs too slowly, the riffles can clog up and the process is too slow.

Subscription Required:
The Bawl Mill   • Ask the Experts   • One Potato, Two Potato...   • Proper Placer Sample Processing   • Strategic Metals—Part I   • Dry Washing to Capture Fine Gold   • Are There Any Good Prospects Left?   • Ophir—Possibly the Best Kept Secret in Alaska!   • Southern Oregon's Illinois River—A Lesson in Sharing   • Using Sucker Guns to Find Gold   • Making Adjustments to Catch Fine Gold   • A Few Thoughts About Successful Nugget Hunting   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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