Gold panning for tourists: The search for Rheingold is also worth a grand scale.
gray-green sea water simmers. Slowly emerges a huge bucket of white swirls. Thick steel cables pull the laden with 20 tons of rocks, mud and sand from the gripper Kiessee. In the former course of the Rhine north of Karlsruhe, the Swiss building materials group Holcim dig for raw materials for cement production.
