#HTE

Waste ponds are seen at the Neves-Corvo Mine in the Castro Verde Municipality in Portugal. Zinc and copper and the primary resources extracted from the mine and the byproducts of that extraction is sent to these basins three kilometers away. Typically, once waste materials are pumped into a tailings pond, they are mixed with water to create a sloppy form of mud known as slurry. The slurry is then pumped through magnetic separation chambers to extract usable ore and increase the mine’s total output.

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37°34′23″N 7°58′15″W

Source imagery: DigitalGlobe