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Oderteich und Rehberger Graben

Energy supply from the 17th century - out of date?

The largest of all the storage ponds in the Upper Harz is very unusual. With its 20-metre-high dam constructed from huge blocks of granite, the Oderteich was Germany's largest and highest reservoir for almost 170 years. Idyllically located in the middle of the Harz National Park, it still supplies water via the Rehberger Graben ditch for the generation of electricity. The Oderteich is thereby a very special example of the use of sustainable energy sources in the UNESCO World Heritage. Find out where the water was directed during dry periods, what the purpose of the granite obelisks was and when the impressive Oderfall waterfall was created. This circular tour offers you an insight into the construction and the function of this unusual architectural feature.