After the nationalisation of mines in 1946, the shaft and the thermal power station was entrusted to Electricité de France.
After closing in 1958, the mining sites and infrastructures were demolished and workers had to convert to other professions.
Later, a museum and two associations were created to preserve the memory of the mining heritage and several sites were redeveloped to become tourist attractions.
[3] The concession of Ronchamp, Champagney and Éboulet, where the mines are exploited, has 4503 hectares and includes the communes of Ronchamp, Champagney, Magny-Danigon, Clairegoutte, Andornay, Palante and La Côte (only the first three have coal mines).
Among them, two local industrialists: the lord of Gensanne and François Guy, owner of a large forge in Magny-Vernois.