The World of the Leekëpperten

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Get ready for a fascinating journey into the depths of the earth and discover the exciting world of slate! You'll be immersed in the history of the slate industry and meet the Leekëpperten – those who once worked in challenging conditions in the mines.

A special highlight: the visit to the underground mine Johanna – at a depth of 42 meters (370 steps), you will get a unique insight into slate mining. History comes alive here!


Good to know

Children from 10 years old only, accompanied by an adult.
Bring sturdy shoes and a warm jacket (constant temperature of 9°C in the mine).
Automatically translated from Luxembourgish.



Where does it take place?

Musée de l'Ardoise
Haut-Martelange



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Weather forecast ()

sat. 20
17° / 30°
sun. 21
18° / 32°
mon. 22
19° / 33°

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  • 2026-08-05 20:00:00 2026-08-05 22:00:00 Europe/Paris The World of the Leekëpperten Get ready for a fascinating journey into the depths of the earth and discover the exciting world of slate! You'll be immersed in the history of the slate industry and meet the Leekëpperten – those who once worked in challenging conditions in the mines. A special highlight: the visit to the underground mine Johanna – at a depth of 42 meters (370 steps), you will get a unique insight into slate mining. History comes alive here! Musée de l'Ardoise, Haut-Martelange TouristInfo Wëlle Westen
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