Another part of the interior at Salt Mine, Turda,R - The salt was exploited in the same mines that worked previously, but those in Turda were still the most important. The mineralogist Johann Fridwaldszky in his 'Mineralogia Magnus Principatus Transilvaniae', published in 1767, stated that 'the mines in Turda worth being visited'. After a detailed presentation of the bell-shaped mining system as well as the evacuation by vertical transporter, the author relates that the mines in Turda have five important wells: the first one is called 'the upper one', the second is 'the low one', the third called 'Cojocnean', the fourth called 'St. Terezia' and the fifth called 'Sf. Anton'. The Salt Mine from Turda, known as one of the most important in Transilvania, started to fall into decay after 1840, due to the growing competition with the salt mine in Ocna Mures.