Laghi Gemelli, Alpine lake in Branzi, Italy

Laghi Gemelli is a reservoir lake in the Val Brembana, in the municipality of Branzi, Province of Bergamo. It lies in a basin bounded by Pizzo Farno, Monte Corte, Passo dei Laghi Gemelli, Passo di Mezzeno, Monte Spondone, Monte del Tonale, Pizzo dell'Orto and Pizzo del Becco. A dam built in 1932 holds the water; when the reservoir is nearly emptied, as in 2005 during reinforcement works, the single body divides into two basins.

The two natural lakes that once filled this basin were joined into a single reservoir during the 20th century by the construction of a dam. The operation changed the outline of the basin and brought the site into the regional water supply network.

The name means "twin lakes" in Italian, recalling the two separate water bodies that once existed side by side. Walking along the shore today, it is hard to tell where one ended and the other began, as the water surface feels completely continuous.

The lake is reached on foot via trail 215 from the Brembana Valley, starting near the Mezzeno mountain cabin above Roncobello. The walk takes about two hours and calls for sturdy footwear and some experience on mountain terrain.

The name "Twin Lakes" predates the dam: before 1932 two smaller lakes lay side by side, and when the reservoir is nearly emptied, as in 2005 during reinforcement work, the single body of water splits again into two basins. A local legend tells of two lovers who fell into a ravine and whose tears formed the twin lakes.