Gold Mining Methods - Ground Truth TrekkingOct 6, 2010 . Summary. Historically, the majority of gold was mined from "placer deposits", where gold has settled out of an existing or ancient waterway.different gold mining techniques,Gold mining - WikipediaGold mining is the resource extraction of gold by mining. As of 2014, the world's largest gold .. Placer mining is the technique by which gold that has accumulated in a placer ... "Global demand for gold is another threat for tropical forests".
different gold mining techniques