Bacino di Val Malvaglia (or Lago di Malvaglia) is a lake above Malvaglia in the canton of Ticino, Switzerland. The reservoir's surface area is 0.19 km2. Its arch dam was built in 1959 and is operated by Officine Idroelettriche di Blenio SA (Ofible). See also List of mountain lakes of Switzerland External links Swiss Dams: Malvaglia Ofible: Bacini pericolosi Lakes of Ticino Reservoirs in Switzerland Arch dams