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February 8, 2014 – Danakil Desert, Ethiopia: Workers mining salt at the quarry. (Photo by Ziv Koren/Polaris)

Inside the Afar Triangle in Ethiopia’s Danakil desert, camel caravans are used to carry salt. For centuries, the essential mineral has been mined by the Afar people, known for their ability to withstand extremes. The terrain is rugged, travelers are scarce and so are motor vehicles, where the average annual temperature is the highest in the world, and can rise to 122 degrees Fahrenheit, 50 degrees Celsius. (Photo by Ziv Koren/Polaris)
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30 Apr 2014 08:17:00
[Lake Natron in Tanzania

Lake Natron is a salt lake located in northern Tanzania, close to the Kenyan border, in the eastern branch of the East African Rift. The lake is fed by the Southern Ewaso Ng'iro River and also by mineral-rich hot springs. It is quite shallow, less than three meters (10 feet) deep, and varies in width depending on its water level, which changes due to high levels of evaporation, leaving concentrations of salt and other minerals, notably sodium carbonate (natron).
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05 Jun 2013 10:29:00
Salt ponds in San Francisco Bay

Salt evaporation ponds, also called salterns or salt pans, are shallow artificial ponds designed to produce salts from sea water or other brines. The seawater or brine is fed into large ponds and water is drawn out through natural evaporation which allows the salt to be subsequently harvested. The ponds also provide a productive resting and feeding ground for many species of waterbirds, which may include endangered species. The ponds are commonly separated by levees.
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11 Oct 2012 12:49:00
Salar de Uyuni

Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes, and is elevated 3,656 meters (11,995 ft) above mean sea level. The Salar was formed as a result of transformations between several prehistoric lakes. It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar.
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04 Aug 2012 08:42:00
Salt

Motoi Yamamoto is an incredibly patient man. His intricate salt labyrinths can take weeks to create and require a slow, steady hand, not to mention a tremendous amount of salt. The result is a beautifully detailed, if impermanent, exhibition.
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13 Jul 2012 10:21:00
Villagers Evaporate Brine At Ancient Salt Fields

A villager pours brine into troughs at ancient salt fields on May 5, 2005 in Yantian Village on Hainan Island, China. (Photo by China Photos/Getty Images)
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03 Dec 2011 13:19:00
A farmer carries baskets of salt during a harvest in the the salt production process in Sumenep on Madura island, Indonesia

A farmers carries baskets of salt during a harvest in the the salt production process August 13, 2009 in Sumenep on Madura island, Indonesia. (Photo by Ulet Ifansasti/Getty Images)
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07 Sep 2011 12:40:00