Volcano
Nature

Volcanic Origin

Here, at the abandoned quarry at the Weilberg mountain , we see the structure of the rocks and get an idea of how the Siebengebirge came into being. About 30 million years ago, in the Oligocene and into the Miocene, there was volcanic activity in our region. In a first […]

Siefen, Siebengebirge
Nature

Siefen

The German word “Siefen” describes deeply indented moist valleys, of which there are many in the Seven Mountains. It is quite possible that they have even given it its name, because originally it was perhaps “Siefengebirge”, so the mountains (Gebirge) with a many “Siefen”, and only later became “Siebengebirge” that […]