Paul Souders/ Worldfoto / Red algae and salt formations, Lake Natron, Ol Doinyo Lengai, Tanzania
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Vincent Grafhorst / Salt flat, Lake Asale, Danakil Depression, Ethiopia
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Vincent Grafhorst / Dromedary (Camelus dromedarius) caravan transporting salt across salt flat, Lake Asale, Danakil Depression, Ethiopia
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Eric Baccega / Afar men mining salt at Lake Assale. Danakil depression, Afar region, Ethiopia, March 2015.
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Eric Baccega / Salt caravans made up of hundreds of Dromedary camels (Camelus dromedarius) and their pullers transporting salt slabs cut from Lake Assale to the Mekele Market, Danakil depression, Afar region, Ethiop...
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Eric Baccega / Salt caravans made up of hundreds of Dromedary camels (Camelus dromedarius) and their pullers transporting salt slabs cut from Lake Assale to the Mekele Market, Danakil depression, Afar region, Ethiop...
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Paul Williams / View from plane of landscape between Alice Springs and Perth, Australia, November.
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Juergen Freund / Halligan Bay, where land meets water of the salt field and thousands of dead bugs, fish, rodents and birds are washed ashore. Lake Eyre, South Australia
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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 / Aerial view of flock of Flamingos flying over the salt lake, Lake Natron, Rift Valley, Tanzania, August 2009
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Juan Carlos Munoz / Aerial view of flock of Flamingos flying over the salt lake, Lake Natron, Rift Valley, Tanzania, August 2009
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Loic Poidevin / Mineral deposits at the Dallol hydrothermal site, Salt lake Karoum, Danakil depression, Ethiopia, February 2009