Nonnenmattweiher
Kleines Wiesental, Germany · built 1987
The Nonnenmattweiher is a lake that has been impounded by an embankment in the Southern Black Forest in Germany. Together with the surrounding area it forms a nature reserve of the same name in the High Black Forest in the state of Baden-Württemberg.
NatureReserve data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).