©Musée de l'Ardoise

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.
Friday05.12.2025 : 10:00 - 18:00
Saturday06.12.2025 : 10:00 - 18:00
Sunday07.12.2025 : 10:00 - 18:00
MondayClosed
Tuesday09.12.2025 : 10:00 - 18:00
Wednesday10.12.2025 : 10:00 - 18:00
Thursday11.12.2025 : 10:00 - 18:00

Your advantages


  • exclusive discounts of up to -30%
  • free or discounted admission to more than 80 attractions

Contact

Address: Musée de l'Ardoise
Entrée principale
L-8823 Haut-Martelange
Show on map

More offers

min.10.00€
Slate Museum - Mine Johanna (-42m)

Individual tour of the underground mine "Johanna" at the Slate Museum Haut-Martelange. Discover the great slate extraction…
min.15.00€
Slate Museum - Guided Tour "Below ground"

Every Sunday, you have the possibility to participate in a guided tour of the underground mine "Johanna"!After a short…

More sites

©Visit Éislek
30%
with theLuxembourgPass
Copper Mine Stolzembourg
Accompanied by a guide, discover the informative museum about the geology of the region, the history of the mine and the different mining periods. Follow the geological trail with 10 display panels and explore the deep underground galleries!
Find out more
Holy Church Lieler
The Roman Catholic church "Zum Heiligen Kreuz" in Lieler impresses with a Gothic choir tower from the 14th century, accompanied by frescoes from the 16th century.
Find out more
©Visit Éislek
Church Saints-Côme-et-Damien
The parish church of Sts Côme et Damien in Clervaux, built in 1910/1911 in the Rhenish-Romanesque style, impresses with its striking dome above the altar and its majestic twin towers with melodic chimes.
Find out more
Përmeshaff – Estate ruins
Përmeshaff, a historic site near Kaundorf, traces its roots to 1195. Over the centuries, it evolved into a religious centre, attracting pilgrims to its chapel and healing springs. Despite enduring a devastating fire in 1936, recent archaeological efforts have unveiled layers of its rich history, highlighting significance of Përmeshaff as a cultural landmark.
Find out more
©Visit Éislek
Centre Cinqfontaines
The small village of Cinqfontaines (Five Wells), not far from Troisvierges, is home to a former monastery built at the beginning of the 20th century. In 1941 it was confiscated by the Nazis who used it as a place of internment for Jews from Luxembourg.
Find out more
©Plomm
The PLOMM children’s museum
A unique experience! The PLOMM children’s museum offers children aged zero to twelve, as well as their families and companions, a wide range of exhibitions and studios.
Find out more
©Mike Zenari
free
with theLuxembourgPass
National Brewery Museum and Tannery Museum
Discover the fascinating brewery museum in the historic ambience of Wiltz Castle! Immerse yourself in the world of beer making, take part in a brewmaster course and enjoy your own brew on site.
Find out more
©Visit Éislek
Kalborn Mill
The mill in Kalborn, which is over 200 years old, has developed into a nature conservation centre. Endangered river pearl and brook mussels are bred here. Information boards in front of the mill show how gardens can provide habitats for wildlife and insects.
Find out more
©Visit Éislek
Fire brigade museum an der Géitz
Discover the fascinating world of firefighting at the Wiltz Fire Brigade Museum! Marvel at historic fire engines and immerse yourself in the daily work of the heroes in uniform!
Find out more

A slate story

Transforming Experiences

Nestled in the rolling hills of quaint Haut-Martelange lies a place that takes visitors back to a time when slate was worked by hand. The rocks are living history and presented in fascinating ways at the new Slate Museum in Haut-Martelange.

Read more
Haut Martelange, Slate Museum
©Thomas Jutzler