The colliery Saint Fontaine was opened in 1908. For the extraction of hard coal, they dug to a depth of 1037 meters. In the 1960s, up to two million tons of hard coal were mined. In 1972 the colliery was closed for the first time, but in 1976 the operation was resumed. In 1986, the final closure, whereupon a large part of the buildings were demolished. Today, apart from the listed tower, only the administrative building including the locker room / pithead baths exists. In recent years, unfortunately, there was a lot of vandalism; last the ceiling lamps were destroyed by some idiots.
In Saint Fontaine, there were repeated fatal accidents.
On 3 January 1933, 36 miners were killed in a gas explosion.
On May 29, 1959, another 26 workers were killed in another explosion.
On September 23, 1968, three miners smothered.
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