Lake Idro (, also Eridio from , , ) is an Italian prealpine lake of glacial origin situated largely within the Province of Brescia (Lombardy) and in part in Trentino.

At above sea level it is the highest of the Lombard prealpine lakes. The lake is fed principally by the waters of the river Chiese; that river is also its only emissary. It has a surface area of and a maximum depth of .

The lake is surrounded by wooded mountains. The shoreline of some is shared across four communes: Idro (the frazioni Crone and Lemprato), from which the lake takes its name, Anfo, Bagolino (fraz. Ponte Caffaro) and Bondone (fraz. Baitoni).

Lake Idro currently has become a site of conflict between environmental, agricultural and electricity industry interests.

The name derives from a legendary monster (Idra) who supposedly lived there.

Gallery

See also Italian Lakes List of lakes of Italy

References http://www.ise.cnr.it/limno/schede/idro.htm Salviamo il lago d'idro