Slate Museum - Musée de l'Ardoise
Where? Entrée principale, L-8823 Haut-Martelange
free
with theLuxembourgPass
Discover the fascinating world underground at the Haut-Martelange Slate Museum! Experience the history and techniques of slate extraction and immerse yourself in the new, fascinating "Johanna" visitor gallery. Experience the everyday life of slate workers at first hand!
Experience an exciting journey back in time to the slate industry of the 20th century. In the slate museum, a museum facility awaits you that gives a complete picture of this more than 200-year-old activity. Discover the path of the slate stone, from its formation and its extraction underground to the finished product and its transport. Explore the working conditions of the slate miners and get a vivid picture of the everyday world.
Entry to the site is free and various animations (ride on the industrial train, Bopebistro, Detektive Schuppi,...) are available.
Practical information
- Toilets
- Shop
- Public transport connection
Culture info
- Visit possible (& visit information)
LuxembourgPass
- Free admission for individual visits to the "Johanna" visitor mine with the LuxembourgPass
Opening hours
Opening hours are subject to change. Please check them before your visit in order to be sure.
| Wednesday | 25.02.2026 : 10:00 - 18:00 |
| Thursday | 26.02.2026 : 10:00 - 18:00 |
| Friday | 27.02.2026 : 10:00 - 18:00 |
| Saturday | 28.02.2026 : 10:00 - 18:00 |
| Sunday | 01.03.2026 : 10:00 - 18:00 |
| Monday | Closed |
| Tuesday | 03.03.2026 : 10:00 - 18:00 |
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