Rio Tinto Mines
CountrySpain
RegionAndalusia
Year Opened3000 BC
Size/DepthVariable
MineralCopper/Silver/Gold
About Rio Tinto Mines
Named after the red river, colored by millennia of mining. Among the oldest mines in the world, possibly 5,000 years old. Tartessians, Phoenicians, Romans, and Moors all mined here. NASA studies the area for Mars analog research.