Jean E. Roche / Arial view of coloured salt pans, colour is determined by the concentration of various elements, Salins de Giraud, Camargue, Southern France
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Juan Carlos Munoz / Aerial view of salt pans coloured red by cyanobacteria, Lake Natron, Rift Valley, Tanzania, August 2009
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Juan Carlos Munoz / Red waters of the Rio Tinto, coloured by dissolved minerals, primarily iron. Andalusia, Spain, December 2011.
