The tunnel leads a long way straight into the mountain to a collapsed mining dome. There you can squeeze into a tunnel that branches off to the left, which leads …
The tunnel mouth is about 50m from the path of the dream loop (forest path) away above the slope behind the fenced garden plots on a forgotten and overgrown farm …
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 …