Sonogno is a village and former municipality in the district of Locarno in the canton of Ticino in Switzerland. It is located in Valle Verzasca. On 17 October 2020 the former municipalities of Vogorno, Sonogno, Corippo, Brione (Verzasca) and Frasco merged to form the new municipality of Verzasca.

Vogorno is a village and former municipality in the district of Locarno in the canton of Ticino in Switzerland. The village is located above Lago di Vogorno, a reservoir formed by the Verzasca Dam. On 17 October 2020 the former municipalities of Vogorno, Sonogno, Corippo, Brione (Verzasca) and Frasco merged to form the new municipality of Verzasca.