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Ed in SoDak

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About Ed in SoDak

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  1. Mining the miners is nothing new. Most of us keep fresh batteries in our B.S. detectors, and mine's beeping a bit reading your first post here. That said, is there some new sort of scam being played up there? -Ed
  2. It's got to be one of the better witnessed falls with lots of video and one of the largest in recent history. 1200 or more injuries, fortunately mostly minor and some structure damage, but it sure could have been far worse. I guess we should feel truly lucky the big one the following day stayed out in space. The Earth is way past due for a major meteor strike, cosmologically speaking. -Ed
  3. A small speaker's cone movement can be easily felt with fingertips lightly pressed against the cone. It might be pretty easy to open up some cheap headphones and mount one of the drivers where it's easy to keep your fingers on it. Or buy a small speaker, jack and wire at Radio Shack and work something up. I had a couple small speakers with mylar cones that were waterproof and very durable. Some types of headphones use something similar for their drivers. -Ed
  4. Sure, you can discount or ignore fantastic-sounding air tests, but air tests are still useful, as they can help you learn your detector's response to all types of targets. Either toss test objects on the ground or get set up in an easy chair and wave away. If you doubt, it's easy to note the response of any real target you have just recovered. Said response is what caused you to dig it in the first place, so the hard part is already done. Now try an air test of your find before you tuck it in your poke. Any difference? It's easy enough to do along with getting that great pic of it to post lat
  5. I read in some book that dogs can be trained to sniff for arsenic, which is associated with some gold deposits. Gold itself is so inert, it probably doesn't emit an odor but its impurities might. That is one alert, intelligent-looking pooch! I have to wonder why he was left to the shelter. -Ed
  6. If you own two machines you'd like to compare and have no nuggets under your belt, you can try a bit of lead fishing sinker as a substitute. Tape it to a card or glue to a poker chip for easy spotting and retrieval. Add on a string or cord, then you can bury it some inches deep, then simply pull it back up by the string after testing. When I was getting started, I bought a couple small gold nuggets from a local tourist mining exhibit, just to have the "real thing" for testing. But a piece of cheap ol' lead anything will read about the same. If all the spent bullet slugs I've dug were gold, wel
  7. When Sandy and I are out prospecting, when we find old foundations and other signs of habitation from long ago, we often see some of the same types of plants growing nearby. The Black Hills didn't come to life very much till 1876, and that's fairly recent as far as the gold rushes are concerned. So we do come across things like an old apple tree, still alive and making delicious fruit at the abandonded gold town of Spokane near Mt. Rushmore. Some plants don't seem to take hold until the ground beneath is disturbed, like by digging or other domestic yard work. So if you see a group of different
  8. Great finds! We keep hoping for one, even a smidgen of those would make my day. Speaking of the "most unlikely" place, there's a great story about the early gold rush days in the Black Hills. A group of negro miners went up to Tinton and asked the miners there where they should look. They were sent to the least-likely place to look. One of those great twist of fates, they found so much, the US Calvary had to escort them out of the Hills with their finds. The mountain they worked was named "n" hill, you know the non-PC term, and that's how it was named on the maps, till not all that long ago it
  9. Sweep speed is dependent on the machine, you can do bench tests to see how slow or fast behaves on your machine. Mine vary a lot one model to the next. Scan width depends on the coil. An inch or two less than the coil's width should cover the most ground, but the deepest area is maybe half to two-thirds of coil width. This no doubt varies a lot by coil size and design. Swing distance is what's comfortable for you. A really narrow swing can help as much or more than a snail-crawl speed normal width swing. -Ed
  10. Here's my take on it. They used the short ditches to collect the runoff from water cannons aimed above the ditches. The ditch took some 30-40 feet of runoff, then channeled that into a single drainage. That would have been easier to aim towards multiple long tom sluices then water seeking its own path down the hill. It would include less material from below the ditches. That way you could crudely control how much of the hillside you were working at a given time. If there were a bench deposit above, you could shoot for that and by careful aim of the water cannon and placement of your ditch, you
  11. Hey Bill, I'd be glad to trade a steamin' hot cup o' joe for your first nugget find of the hunt. Deal?
  12. Daguerrotype is another early process that used a thick plate. "A photograph taken by an early photographic process employing an iodine-sensitized silvered plate and mercury vapor" says my dictionary. If viewed from the right angle, the image is seen as a positive. I just inverted Red-desert's lightened version and got this. -Ed
  13. Buy a little test nugget. An 8-grain nug was just a few bucks and at about the limit of what my detector will read. Lacking a real nugget, nip a small bit off a fishing weight or .22 slug. Lead detects similarly to gold, close enough for testing, and no biggie if it's lost. I taped my test nug to a 2" square card and added a string so I could bury it and retrieve by following the string down the hole or pulling up on it. Lay it on the surface or bury it an inch or three and find what settings seem to pick it up best in the actual ground you'll be searching in. I also made similar cards for coi
  14. Thanks, just read this and tuned in. Missed 15 minutes, we'll see how the rest of the show looks. -Ed
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