The past was preserved by the smaller companies under the management of the DGT after 1945. From the 1950's uranium was mined in the Mecsek as well. The companies created the permanent exhibition in the head office of the DGT and opened it in 1977. An idea of opening an underground exhibition ward occured even at the beginning of the 20th century, however it was only realized in 1981 under the name Mecsek Mine Museum which is 400 ms long on 1000 m2 8-10 ms undergraound.