Ask the Experts
May 2014 by Chris RalphSetting up a gravity dredge
Has anyone made it through childhood, or even adulthood, without at least one dream of finding gold or buried treasure? It is the stuff of daydreams—the kindling for the flame of hope. We so long for it that we eagerly accept stories and maps from friends and strangers alike that promise us fame and fortune.
So, how much rain does it take to cause a major movement of gravels in a stream and redistribute the gold? The technical answer is enough water to move the bed load of the river.
It was one of those awkward situations as we walked, fatigued and too thirsty to speak a word.
Representative Paul Shepherd stopped by, and Idaho County Commissioner Jim Chmelik dove with one of the dredgers so he could see for himself that no harm was being done to fish or their habitat.
"Suh-wheet!" I exclaimed as I sprang to my feet and quickly pumped my detector coil high overhead to alert Smokey that I had just found a nugget.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
The first experience involved an overgrown gold mine operated during the 1880s. A razed mill adjoined the mine and could be glimpsed from the isolated public dirt road I was traveling.
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