The quarry has existed since 1979. Mining of andesite via blasting (every 2 weeks). On a surface of 12ha, mining is in progress and reached a depth of 80m.
During the course of the 1990s, a 40 hectare complex emerged on the grounds of the former Neunkirchen Ironworks, boasting marvellous monuments and relicts from the heyday of the iron and steel industry.
on a quietly located, vast terrain, in a valley bed outside the village of Haut-Martelange, the museum offers guided tours of the former slate quarries.
the leaning houses of Sulzbach are situated in the Rote-Weiher-Strasse. Underground coal-mining has caused the houses to take on a precarious tilt.
The Gegenort mine shaft comprises a shaft hall, an old pit frame and an open-air ground, idyllically nestled amidst woodlands.
founded by the Walloon Remacle de Hauzeur in the early 18th century, the Düppenweiler copper mine employed up to 300 miners.
the Carreau Wendel mining museum La Mine in Petite-Rosselle is the largest mining site in France and the only one that is still complete, which makes it one of a kind in Europe.
the former coal mine started operations in 1963. At the time, it was the most modern coal mine in the world. Shut down in 2005, it is today under preservation order.
for almost 150 years, black gold has been unearthed at the Reden coal mine.