Underground Mining: Stoping Methods
October 2016 by Chris RalphIn an old mine that does not have stopes, you know the old miners did not take much if any ore out of that excavation. On the other hand, if you see large stopes within the mine you know that it is these places where the miners found profitable ore deposits within the vein.
Even with the decades of mining and exploration, much of the Comstock is still underdeveloped and its potential not fully tapped.
The 15 rare earth elements were discovered long after the gold rush began to wane, but demand for them only took off over the past 10 years...
So far this year we have recovered over three pounds of gold and the hard rock veins seem to go on forever. We now have three claims that can produce good enough gold to set up a productive operation.
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.
Centrifugal bowls versus jigs
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.
Gold discoveries in the Montana territories sparked a frantic stampede to these bonanza destinations in the early 1860s. Hughes Creek is located in Ravalli County, which is located in western Montana, and the gold here is...
The Bawl Mill • Ask The Experts: Should I remove someone else’s claim post from my claim? • Ask The Experts: Question about resolving a quitclaim error • A New Prospecting Spot • MMAC & PLP Update • Digging It Dry • Alternative Financing Alternatives • Dredging Therapy • Moving The Big Rocks • Modesto, California Man Finds 18-Ounce Nugget • New ICMJ Website Almost Here • California State & National Gold Panning Championships • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices