The basalt open-cast mine in Nieder-Ofleiden (Homberg/Ohm) is the largest of its kind in Europe. It is operated by Mitteldeutsche Hartstein-Industrie GmbH (MHI). The Steinexpo takes place here every three years.
The varied and exciting GeoTour Felsenmeer circuit leads past the open-cast mine and offers breathtaking views.
Did you know that the opencast mine has already been used twice as a film set? Read more