The Schieferkaut near Königsberg was one of the mines in the Lahn-Dill area. It was a small roofing slate mine and was maintained around 1885 by a local citizen who, …
The Treis Stone Age Caves are actually more like rock niches, but still very imposing structures. You can get close by bike, but it's better to walk the last few meters.
The Hainau mine was operated sporadically from 1860 to 1915. River iron stone with an iron content of 25% was mined. In 1869 an extraction tunnel with a length of …
The extra loop leads to the tunnel mouth hole of the "New Tunnel", which is used by bats today. Past the former Briel tunnel and colliery building of the Abendstern …