Gold Dredge Research Papers

Gold has been around for many years, but when did it become a big deal and where do we find this elusive mineral? “People in California figured gold was there, but it was James W. Marshall on January 24, 1848, who saw something shiny in Sutter Creek near Coloma, California. Another builder, James S. Brown, heard Marshall say, "Boys, I have got her now." Brown stepped over to Marshall, who held his hat in his hand. There in the hat were 10 or 12 pieces of gold.’’ (americaslibrary.gov) You can also find gold in all sorts of places like creeks, mountains, rivers, streams and the ocean. You can get gold not just in America but in most of the countries of the world and not just dug up by hand.
There are multiple types of gold mining: hard rock mining, hydraulic mining, and placer mining. Hard rock mining is mining hundred of feet underground in tunnels inside of mountains. Hard rock miners use tunnel boring machines, crusher, and drilling rig. Tunnel boring machine is a machine that consists of a bunch of little metal teeth that eat away at the rock. Crusher is a machine that crushes rocks into small pieces …show more content…
Before the gold dredge existed the old timers set up a sluice box in streams, rivers, or creeks. Then they would shovel gold rich dirt into a sluice box and the creek water would wash the dirt down the sluice box into ripples and trap the gold. Later on people started using hydraulic mining. After that they finally invited the gold dredge. “The gold dredge appeared in the early 1900’s, “Several crudely built steam powered dredges were active on some of the northern rivers of California,’’(nps.gov) but there are two different types of dredges, underwater dredges and above ground dredges. Underwater dredges float a couple of feet under the water and use suction to suck the dirt. People use underground dredge all over the world, but above ground dredge are a lot safer and more