Mount Arjuno-Welirang is a stratovolcano in the province of East Java on Java, Indonesia. Mount Arjuno-Welirang lies about 50 kilometers (31 mi) south of Surabaya, and 20 kilometers (12 mi) north of Malang. It is a twin volcano, with the 'twins' being Arjuno and Welirang. There is at least one other stratovolcano in the area, and there are around 10 pyroclastic cones nearby. They are located in a 6 km line between Arjuno and Welirang. The Arjuno-Welirang volcanic complex itself lies in the older two volcanoes, Mount Ringgit to the east and Mount Linting to the south. The summit lacks vegetation. Fumarolic areas with sulfur deposits are found in several locations on Welirang.