Areas known for their salt mines include:
|Austria||Hallstatt and Salzkammergut.|
|Bulgaria||Provadiya; and Solnitsata, an ancient town believed by Bulgarian archaeologists to be the oldest in Europe and the site of a salt production facility approximately six millennia ago.|
|Canada||Sifto Salt Mine in Goderich, Ontario, which, at 1.5 miles (2.4 km) wide and 2 miles (3.2 km) long, is one of the largest salt mines in the world extending 7 km2 (2.7 sq mi) .|
|England||The "-wich towns" of Cheshire and Worcestershire.|
|Ethiopia, Eritrea, Djibouti||Danakil Desert|
|Germany||Rheinberg, Berchtesgaden, Heilbronn|
|Italy||Racalmuto, Realmonte and Petralia Soprana within the production sites managed by Italkali.|
|Morocco||JMS salt mine in Khemisset.|
|N. Ireland||Kilroot, near Carrickfergus, more than a century old and containing passages whose combined length exceeds 25 km.|
|Pakistan||Khewra Salt Mines, the world's second largest salt-mining operation, spanning over 300 km.|
|Poland||Wieliczka and Bochnia, both established in the mid-13th century and still operating, mostly as museums. Kłodawa Salt Mine.|
|Romania||Slănic (with Salina Veche, Europe's largest salt mine), Cacica, Ocnele Mari, Salina Turda, Târgu Ocna, Ocna Sibiului and Praid.|
Before the advent of the internal combustion engine and earth moving equipment, mining salt was one of the most expensive and dangerous of operations, due to rapid dehydration caused by constant contact with the salt (both in the mine passages and scattered in the air as salt dust), among other problems borne of accidental excessive sodium intake. While salt is now plentiful, until the Industrial Revolution it was difficult to come by, and salt mining was often done by slave or prison labor and life expectancy among those sentenced was low. In ancient Rome, salt on the table was a mark of a rich patron; those who sat nearer the host were "above the salt," and those less favored were "below the salt". The Roman historian Pliny the Elder stated as an aside in his Natural History's discussion of sea water, that "[I]n Rome ... the soldier's pay was originally salt and the word 'salary' derives from it ..."
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