Waterfall At Rio Tinto. The Rio Tinto (Red River) Is A River In Southwestern Spain. As A Possible Result Of The Mining, Rã­o Tinto Is Notable For Being Very Acidic (Ph 2) And Its Deep Reddish Hue Is Due To Iron Dissolved In The Water.

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acid acidophiles andalusia colorful colors contamination current death deep europe extreme flow foam huelva industry landscape leaf metal mineral motion nature orange outdoors pigments pollution pyrites quiet rain red reflection rio river rocks saturation sheer solitary south spain spanish speed stone strips sulfur surface tinto transparent view warm water waterfall wave yellow