26 posts in this topic
By Steve Herschbach
This is an interesting dredge. I was really into subsurface dredges for portability. Keene for a brief time sold a set of inflatable pontoons, so I got a pair and in 1999 put this 5" subsurface dredge together. The frame was homemade out of stock aluminum, and the pontoons were held in place with plastic drums I split in half length-wise. The tube was a standard Keene 5" subsurface dredge tube of the time. The old black marlex version was a pain because the tray clipped on at the forward end. I had to reach into the middle of the assembly to release the clips, and then the tray would drop down in front. In current this was a problem for sure as the current would want to grab the tray and knock it down. The later granite gray marlex tubes were improved with the release clips at the rear, which were easy to grab from the back of the dredge. The rear of the tray would drop down and was easily slid out to the rear. Much better. 5.5HP Honda powered Keene P-180 pump with 5" suction nozzle. Nice dredge, very compact and light-weight.
This was on the Mills Creek Cooperative claims on upper Mills Creek on the Kenai Peninsula of Alaska. We got a lot of nice gold in the stretch in the picture as a narrow canyon widened out at this point. Bob(AK) is a member of the forum, and he also did very well here.
Another couple photos of the dredge taken with the crappy digital cameras of the day while being built in my back yard.
Title chosen because I'd be banned if I wrote what I really wanted.
Spotted a camper parked in the scrub not far from a well, so went to see who and introduce myself. No one was there so I followed the tracks as they were heading to the well.
They went passed the well and towards the next one which isn't in a known gold area but is in an area that holds a lot of water especially after the rain we've had.
Bugger me if the track didn't keep going and into a no go area. I knew I would either come across them heading back out or bogged.
Sure enough, 4klms in and there's a Hilux duel cab bogged up to its eyeballs with a very relieved to see me NSW couple in their 70's. They had been there all day with nothing but a now empty thermos of coffee, no comms, no recovery gear, no food or water.
And of cause I get bogged trying to get them out.
As it was 4.30pm no option but to stay put for the night. I gave them what food I had as they had not eaten all day, plus plenty of water. They slept in their ute and I slept in mine plus in front of a fire when it got too cold.
They next morning I hiked 17klms out to the road with the intent of getting a lift the 60klms into town and then a lift back out to the homestead to pick up my other ute and come get the couple and drop them at their van. I'd let them worry about retrieving their ute themselves.
As luck would have it for them and me, a mining company offered to get us both out which they did with the aid of my 5 chains and two snatch straps plus a hell of a lot of shovel work.
A very embarrassed but pretty shallow thankyou from the couple and a carton of beer and about 20 very greatful and heartfelt thankyous from me.
And now the track is stuffed for about 100 yards.
Unfortunately, the laws in Australia are written in such a way that makes it illegal for me to head butt them.
Well got the dredge fixed up as much as I'm gonna! Springs here and I got the fever. So in we go.
Took the dredge in assembled just skidded it in on the float and pulled it with a snowmobile. That was nice with all the snow it was about a mile in.
Getting the dredge into the canyon was another deal. Although not to bad lowered it in with a rope and a pulley.
Made for a long day but I was glade we got it in before the snow melted, skidding everything was a lot easier than packing in.
Went up the following weekend to try out the new six inch dredge!
Had big plans to get in early Saturday and work late, figured I could get 8-10 hours on the nozzle. LOL! Well its been a long winter and seems I'm a bit outta shape. After four hours of dredging in the cold I was done!
All in all I had a blast. The new dredge really put out compared to the four inch I've been using. Even got a few grams for the effort.
May not seem like much but after being cooped up all winter and seeing all the gold post from down south and across the pond........ I was getting Bitchy ;-)
P.S. Hope the snow pics helps you down in Texas.
Got out Friday, and decided to use the good ol Boat Anchor 19 " coil on the ZED. After finding the Specimen Gold, and into it 2 hours, my Bungee broke, and I had to go to my backup bungee, and also switched back to the 14". I was using the High Yield Mode with the 19" coil, since the soils here are not to bad, and I seem to get a little more depth using the 19" with High Yield.
By Steve Herschbach
Alaska consists of more than 663,000 square miles (1,717,000 square kilometers) of land—more than a sixth of the total area of the United States—and large tracts of it have not been systematically studied or sampled for mineral-resource potential. Many regions of the State are known to have significant mineral-resource potential, and there are currently six operating mines in the State along with numerous active mineral exploration projects. The U.S. Geological Survey and the Alaska Division of Geological & Geophysical Surveys have developed a new geospatial tool that integrates and analyzes publicly available databases of geologic information and estimates the mineral-resource potential for critical minerals, which was recently used to evaluate Alaska. The results of the analyses highlight areas that have known mineral deposits and also reveal areas that were not previously considered to be prospective for these deposit types. These results will inform land management decisions by Federal, State, and private landholders, and will also help guide future exploration activities and scientific investigations in Alaska.
Karl, S.M., and Labay, K.A., Geospatial analysis identifies critical mineral-resource potential in Alaska: U.S. Geological Survey Fact Sheet 2017–3012, 4 p., https://doi.org/10.3133/fs20173012.
Fact Sheet https://pubs.usgs.gov/fs/2017/3012/fs20173012.pdf
Full Report https://pubs.er.usgs.gov/publication/ofr20161191
I bought a 1000 square meter residential stand in Bulawayo sometime in 2015. The Civil Engineer who helped me clear the place of trees told me that the type of rocks on the property could be carrying gold bearing veins. I took pieces of the rocks for assay and the results were promising. (See picture below for grades per tonne). Unfortunately one cannot mine on residential stands here.
Now it turns out there are old mine workings nearby and there is a mine called Old Nickel also and it probably owns the mineral rights in the area.
It motivated me to take an interest in finding out more about gold as my country is basically rich with all sorts of minerals all over. Bulawayo is generally a gold bearing town, there is what is called the Bulawayan Greenstone belt. So it runs even under my house and I sleep on gold ore that I cannot touch and spend my days on a desk job.
It struck a cord of discontent in me that has brought me to the point of now being about to dig my 1st shaft 30 km from town where, with the necessary paperwork, one is allowed to mine. Initially I had bought a GPX 5000 which I ended up selling because I just did not have the time to walk around in the bush detecting, worse still neither did I have the patience.