Mining Pollution Legacy and Clean-Up

First published May 21, 2017 In the mid-1850’s hydraulic mining filled the stream channels and muddied the waters all the way down to the Pacific Ocean. Mercury was used in sluice boxes to amalgamate gold. “It is estimated that ten million pounds of mercury were lost into the streams,” comments Kyle Leach, Geologist for Sierra Streams Institute. “The tale of the Gold Rush …