NASA images reveal "rivers of gold" in the Amazon rainforest. The rare photos show enormous mining pits reflecting sunlight back at the International Space Station.
They are believed to have been dug illegally as part of a gold rush in the Madre de Dios region in southeastern Peru. An astronaut on the orbiting space station captured the spectacular photographs of the hidden pits in December.The country is a leading exporter of gold with thousands of miners trying to make a living in a relative free-for-all in the region.
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