Salt Mines 鹽礦

One of the colorful brine pools that are part of a lithium salt pilot plant on the Uyuni salt lake, which holds the world's largest reserve of lithium, located at 3,656 meters (11,995 ft) above sea level in southwestern Bolivia, on November 5, 2012. (Reuters/David Mercado)

A worker walks through pools of salt at the Maras salt mines in Cuzco, Peru, on July 3, 2009. The Maras mines have been a source of salt since ancient pre-Incan civilizations and nowadays comprise about 3,000 small pools constructed on the slope of a mountain at the Urubamba valley in the Andean region of Cuzco. (Reuters/Enrique Castro-Mendivil) #

Pools of salt at the Maras mines in Cuzco, Peru, on February 17, 2010. (Reuters/Enrique Castro-Mendivil) #

A small boat quay on a lake at the bottom of Turda salt mine in Turda city, Romania, on December 9, 2010. (Daniel Mihailescu/AFP/Getty Images) #

Ethiopia's Danakil salt pan, near the Dallol volcano, on November 29, 2004. Dallol is unique in the world because is the only volcano situated below the sea level in Danakil depression, also known as Afar, one of the hottest places in the world with temperatures sometimes over 60 degrees Celsius in the sun. (Reuters/Michel Laplace-Toulouse) #

People collect blocks of salt from the salt pan of Ethiopia's Danakil depression, on January 29, 2007. Generations of Afar salt merchants have hauled blocks of salt along treacherous camel caravan routes from the depression to the Tigray highlands. (Reuters/Michel Laplace-Toulouse) #

A laborer works at a salt production factory in Nangqian county, northwest China's Qinghai province, on July 24, 2007. (Reuters/Simon Zo) #

Pools of mineral-colored water gathered on salt flats in holes dug by salt collectors on the Senegalese coastline near the border with Gambia, on June 12, 2006. Women collect salt by hand into 50kg (110lbs) sacks, which sell for about $2, and are traded with neighboring Gambia and Mauritania, where salt is mainly used for preserving fish in areas without electricity. (Reuters/Finbarr O'Reilly) #

A woman walks across salt flats being cultivated for the white crystals near the village of Ngaye-Ngaye, 10 km (6 mi) south of Senegal's northern town of Saint Louis, on April 9, 2007. Some 3,000 people, mostly women, spend long hours under the blinding sun scraping up salt with sticks and their hands, earning the equivalent of a dollar or two per day. (Reuters/Finbarr O'Reilly) #

A truck drives between ponds at Rio Tinto's Dampier Salt Limited's production facility at Port Hedland, about 1,600 km (960 mi) north of Perth, Australia, on May 26, 2008. (Reuters/Tim Wimborne) #

A worker's son plays in a salt pan near Bhavnagar, in the western Indian state of Gujarat, on March 5, 2009. (Reuters/Arko Datta) #

A halite salt crystal in the shape of a heart, illuminated from within, in the Nemocon salt mine in Colombia, on September 26, 2012. (Reuters/Jose Miguel Gomez) #
The Strange Beauty of Salt Mines - In Focus - The Atlantic http://www.theatlantic.com/infocus/2013/04/the-strange-beauty-of-salt-mines/100492/

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