Pizzo Rotondo is a mountain in the Lepontine Alps . At 3,190 metres above sea level, it is the highest mountain lying on the border between the cantons of Ticino and Valais , as well as the highest summit of the Lepontine Alps lying between Nufenen Pass and Lukmanier Pass .

The massif of Piz Rotondo separates the valleys of the upper Rhone (Valais) and upper Ticino. About two kilometres north-east lies the Witenwasserenstock , which is the watershed between the basins of the Rhone, Po and Rhine .

On the north side lies a relatively large glacier named Gerengletscher, which extends to the ridge of the Witenwasserenstock. On the south side, at Passo di Rotondo, lies a smaller glacier named Ghiacciaio del Pizzo Rotondo.