Which volcano has the highest elevation in the world?

Ojos del Salado is a stratovolcano in the Andes and the highest volcano on Earth by summit elevation. Its peak reaches about 6,893 meters above sea level, making it one of the tallest mountains in South America as well. Despite its extreme altitude, it is considered potentially active and has fumarolic activity. The dry climate of the Atacama region helps preserve volcanic features and makes the area unusually arid. Ojos del Salado is a famous goal for high-altitude climbers and a remarkable example of volcanism at great elevation.