Ancre 1

In the heart of Haut-Martelange, discover the Slate Museum,

a unique tourist attraction in Luxembourg with 22 authentic buildings.

Exhibitions, underground mine galleries and a traditional bistro

offer a memorable experience – perfect for families, friends and groups.
Experience the history of slate in an exceptional setting.

VISITORS MINE

-42m

Depth

370

Steps

OPENING HOURS

Tuesday - Sunday: 10am - 6pm

Last entrance underground mine: 4:30pm

Last order Bistro: 5:30pm

Site freely accessible

Visitor mine accessible from 4 years of age!

GUIDED TOUR

Underground (-42m)

📅Every first Sunday of the month🇫🇷 French – Sunday • 10:30 AM

🇱🇺 Luxembourgish – Sunday • 2:30 PM

04/10/2026
01/11/2026
06/12/2026

Booking mandatory at least 24 hours in advance

20220514_Musée Ardoise_INAUGURATION TRAIN & RAILS_DTh45.JPG

TRAIN RIDE

Next train departures (availability* updated regularly):

Saturday 17.10.2026
Sunday 18.10.2026

Ride on the industrial train across the 8-hectare site

*Availability may change depending on weather conditions

Karte

WHAT SHOULD I BRING?

We highly recommend wearing sturdy shoes and to bring a jacket (constant underground temperatur of 9 degrees)

LEARN MORE

ACCESS TO THE MUSEUM

The Main Entrance of the Slate Museum lies on the road CR311 between Rombach-Martelange and Wolwelange.

Parking for cars, motorbikes and busses

Bus stop: "Martelange-Leekoll"

NEWS

Marché de Noël au Musée de l'Ardoise - Haut-Martelange

Christmas Market at the Slate Museum

Marché de Noël au Musée de l'Ardoise - Haut-Martelange - 60 exposants - ambiance de Noël

Musée de l'Ardoise - Visite théatrale - Jeu d'enquête

KIDNAPPING ALERT !

A live-action investigation at the Slate Museum – The Mystery of the Missing Time Traveller What if, for a few hours, the Slate Museum became the scene of a mysterious disappearance? Gather your team and set off on an investigation through the former slate quarries of Haut-Martelange. Across this authentic industrial heritage site, historic buildings, workshops and the underground world become the life-size setting for a mystery that will take you travelling through time. It

Étienne Lenoir’s engine comes back to life at the Slate Museum !

Étienne Lenoir’s engine comes back to life at the Slate Museum!