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City of Salt

Heilbronn / City of Salt


City of Salt


 Heilbronn is most renowned for its wine. Most people, however, do not know that its underground road system, which extends over almost 700 kilometres, is longer than the one above ground.


As early as 1908, the salt mine was the city’s main taxpayer and thus played a crucial economic role for the City of Heilbronn.Today, Südwestdeutsche Salzwerke AG, based in Heilbronn, are one of Europe’s leading salt producers. Südsalz GmbH, which are part of the group, offer a full range of salt products. Südwestdeutsche Salzwerke AG produce both rock salt and evaporated salt for industrial, commercial and private applications as well as road salt.

The salt comes from the Heilbronn and Berchtesgaden mines and from pristine brine deposits deep below the Alps, located close to Bad Reichenhall. The raw material is further processed into evaporated salt in the Bad Friedrichshall and Bad Reichenhall salt refineries. The annual capacity of Heilbronn’s two rock salt mine shafts is about four million tons.

The Heilbronn and Bad Friedrichshall-Kochendorf mines have been connected underground since 1984. The latter is home to the Bad Friedrichshall Museum Mine.
After travelling down 180 metres, visitors will experience the history and various mining methods used in a stunningly illuminated underground world where salt was mined in days long gone.


Highly interesting films, state-of-the-art presentations as well as interactive experiments or breathtaking staged explosions make the underground tour a long-remembered day out. The striking domed hall with its salt reliefs is as impressive as the 40-meter-long slide is fun. The mine is open to visitors between 1 May and 3 October every Saturday, Sunday and on public holidays from 9.30 a.m. to 4 p.m. as well as every Friday between Whitsun and the beginning of the Baden-Württemberg summer holidays.