Tronador is a stratovolcano in the border between Argentina and Chile near Bariloche, separating two National Parks: Nahuel Huapi in Argentina and Vicente Perez Rosales in Chile. It is covered by seven glaciers (Frias, Alerce, Castano Overo, Manso, Peulla, Casa Pangue y Rio Blanco) and it is 3,491 meters high. It was named Tronador (Spanish for 'Thunderer') by locals in reference of the sound of falling seracs. It was first climbed by Hermann Claussen solo on 29 January 1934, after several attempts.