Rio Tinto
The Rio Tinto river in Andalusia (Southern Spain) is one the most surreal rivers in Europe. Known for its red water coloration, from which it takes its name, the river has been the source of ore mining for around 5000 years. The coloration is due to the weathering of minerals containing sulfur substances of heavy metals encountered in the deposits along the river. These are hydrothermal deposits composed mostly of pyrite rocks and chalcopyrite.
This first part of the series is documenting the diverse colors of the river inlets near the coastline. The second part will focus on the mining area further north.
