Corippo lies in the Verzasca valley about 12 kilometers ( 7.4 miles ) from Locarno at the north end of the reservoir Lake Vogorno , and 20 km from the border with Italy . Corippo lies in the Verzasca valley some 12 kilometers ( 7.4 miles ) from Locarno at the north end of the artificial Lake Vogorno , and 20 km from the border with Italy .