Reschensee is an artificial lake in the western portion of South Tyrol approximately 2 km south of the Reschen Pass, which forms the border with Austria. With its capacity of 120 million cubic metres it is the largest lake in the province. In July 1939, the Montecatini company (now Edison Energia) introduced a new plan for a 22 m deep lake, which would unify two natural lakes and submerge several villages. The creation of the dam started in April 1940.