©Brainplug

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
  • Nearby public transport

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.
Wednesday11.11.2026 : 10:00 - 18:00
Thursday12.11.2026 : 10:00 - 18:00
Friday13.11.2026 : 10:00 - 18:00
Saturday14.11.2026 : 10:00 - 18:00
Sunday15.11.2026 : 10:00 - 18:00
MondayClosed
Tuesday17.11.2026 : 10:00 - 18:00

Contact

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

More sites

©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
©Visit Éislek
free
with theLuxembourgPass
General Patton Memorial Museum
The General Patton Memorial Museum in Ettelbruck commemorates the commander of the 3rd US Army whose troops liberated the town on 25 December 1944. The exhibition illustrates the most important events that occurred during the Second World War in Luxembourg.
Find out more
©Visit Éislek
B-17 Bouncing Betty – Plane crash
The Bouncing Betty's Fateful Day in Boulaide
Find out more
©Visit Éislek
free
with theLuxembourgPass
Ancient Cloth Factory "Duch vum Séi"
Discover the cloth weaving factory at the Öewersauer Nature Park Centre! Learn more about the fascinating history of wool processing, see restored machines in action and find unique souvenirs in the regional shop.
Find out more
©Tourist Info Vianden
Trinitarian church and cloister Vianden
Discover one of the most beautiful Gothic buildings in Luxembourg!
Find out more
©Tourist Center Clervaux
The Benedictine abbey of Saint-Maurice
With centuries of history and majestic architecture, the Benedictine Abbey in Clervaux invites you to immerse yourself in the past. A place full of charm and meaning, it opens its doors to visitors on the occasion of the daily morning mass.
Find out more
©Visit Éislek
Vianden Dam
The Vianden Dam is currently being transformed into an oversized artwork.
Find out more
Saint-Roch church Insenborn
Discover the neo-Gothic splendour of the Insenborn church, built according to plans by architect Biver in 1861.
Find out more
©Jängel Klasen
Veiner Gare – Former Trainstation
Nestled along the River Our, the town of Vianden once boasted a unique railway connection – the "Benny Express." This narrow-gauge line operated from 1889 to 1948, linking Vianden with Diekirch's main railway, a vital step in making the town more accessible to tourists.
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