Gridone, Mountain peak in Ticino, Switzerland and Piemont, Italy

Gridone is a mountain summit located on the border between Switzerland and Italy, rising to 2,188 meters above sea level. The terrain features steep rocky slopes with secured climbing sections equipped with chains that guide hikers toward the nearby mountain shelter.

The summit marks the border between Italy's Verbano-Cusio-Ossola province and Switzerland's Canton Ticino, a line that follows the crest of the Ticinese Alps. The mountain stands between Centovalli on the Swiss side and the Valle Cannobina and Val Vigezzo on the Italian side, and its Italian name, Monte Limidario, is paired with the Lombard forms Gridón and Gheridón.

The mountain carries several names: Gridone and Monte Limidario in Italian, Ghiridone in Ticino, and Gridón or Gheridón in Lombard. The summit marks the language boundary between Italian-speaking Ticino and the Italian province of Verbano-Cusio-Ossola, and the ridge path from the Cannobina side passes the alpeggi of Spoccia, Quadra and Catta Mergugna, summer pastures still named on the route.

The easiest routes start from Brissago via Rifugio Al Legn (T2, top sections T3-4 on the SAC scale) or from Cavaglio via the Monti Olzeno alps and Rifugio Biuse (T2, top T3). From Brissago the freely drivable road shortens the climb to Mergugno (1060 m) or Cortaccio (1067 m); from Cavaglio the road is open only as far as Gurrone. In winter it is a popular ski tour, usually from Mergugno or Cortaccio.

The summit lies at 2,186 metres on the Italian-Swiss border, the highest point on the shore of Lake Maggiore between the Centovalli and Valle Cannobina. Because of this position it offers a wide panorama, and in winter it is climbed as a ski tour, usually starting from the hamlets of Mergugno or Cortaccio above Brissago.