The Salt Mine Berchtesgaden has been in uninterrupted operation since 1517. Salt deposits are proven to be up to 300 m below the valley floor in the area of the Salt Mine. Salt does not occur in a pure form, but rather, is encased in the “Haselgebirge”. This composite rock contains an average of 50% salt. It is released from the mountain with the aid of freshwater using a “wet mining” method.