Kardzhali Reservoir
Kardzhali, Bulgaria · built 1977
Kardzhali Reservoir (Bulgarian, yazovir Kardzhali) is an artificial lake and a hydroelectric dam in southern Bulgaria. It is the uppermost of the three major reservoirs of the Arda Hydropower Cascade, the others being Studen Kladenets and Ivaylovgrad. It is the second largest reservoir by volume in the country after the Iskar.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).