Maximum depth: 414 m. Between Nesso and Argegno Average altitude : 199 m. s.l.m. Perimeter: 180 km. Surface: 145 km².
Maximum width : 4,3 km. From Menaggio to Fiumelatte Minimum width : 650 m. Between Careno and Torriggia. Length as the crow flies : 46 km. From Gera Lario to Como
