An artificial basin in the municipality of Entracque, Lago della Piastra was created in the 1960s by blocking the San Giacomo branch of the Gesso stream. Not far away there is a hydroelectric plant named after Luigi Einaudi.
Lago degli Alberghi is nestled in the basin in front of Mount Chiamossero, reachable from Palanfrè. Here you can stop for a regenerating break enjoying the view.
This is an enchanting lake, often little known. Somewhere on the surrounding rocky walls there are ancient rock engravings that recall those of the Valley of Wonders.