The Veddasca Valley is the most northern of the Varese Province and is still today the most solitary and wild, with remarkable evidences of the prealpine rural culture.

The Giona Brook, that flows from the Mount Tamaro into Lake Maggiore, lines it entirely. There aren't communication routes between the two slopes.

On the right of the Giona Brook, along the winding road that links Maccagno to the Indemini Swiss border, there are the villages of Veddo, Garabiolo, Cadero, Graglio, Armio, Lozzo, Biegno. Veddo, from which the valley is called, and Garabiolo are hamlet of the Maccagno municipality, while Cadero, Graglio, Armio (town hall), Lozzo e Biegno belong to Comune di Veddasca.

The other slope of the valley is even more deserted and the only inhabited town is Curiglia con Monteviasco, that is reachable by car from Dumenza. Until 1985 Monteviasco was reachable only by a 2000 steps path as it was the unique village of the Varese Province without road connection with other places. Today a 5 minutes cable railway links it to Piero.

The Forcora Pass (1179 mt.) is the starting point for many excursion on the sorrounding mountains.