Kiliansteich
Harz District, Germany
The Kiliansteich (literally "St. Kilian's Pond") is one of the oldest reservoirs in Germany. The reservoir is located near Straßberg (Harz) in the German state of Saxony-Anhalt and supplies drinking water. It impounds the Büschengraben stream. The lake is part of the heritage area (Flächendenkmal) of the Lower Harz Pond and Ditch System. The reservoir has a rockfill dam with a watertight clay core that sits on a shale bedrock.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).