Only in the years 1921 to 1924 was the pit in operation, in which the oily roofing slate was mined. However, the oil content in this pit was too low. …
An approximately 15 meter deep slate gallery near Leideneck, the side exits of which have already collapsed. Neither the beginning nor the end of the slate quarrying has survived, but …
In addition to some open slate quarries, not far from the path is the entrance to a cave in which slate was also mined. Immediately after the very low entrance, …
At the foot of the rock wall rising north of the town center, behind the restaurant (formerly Pizzeria La Bella), there are two tunnel mouths, each of which initially leads …