Officials in Colombia hope phytoremediation is applied in other places damaged by mining, after seeing quick and dramatic results in Río Viejo and other sites.
The Romans used slaves for the hard manual labour of extracting the gold deposits and it is thought that serious excavation commenced in 75 AD. The gold was destined for the Imperial Mint in Lyon.
More than 150 years after the gold rush first began, fueling Stockton's rapid growth, many are still digging for riches all ...
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