Mount Slamet or Gunung Slamet is an active stratovolcano in Central Java, Indonesia. It has a cluster of around three dozens of cinder cones  on the lower southeast-northeast flanks and a single cinder cone on the western flank. The volcano is composed by two overlapping edifices. Four craters are found at the summit. Historical eruptions have been recorded since the eighteenth century.

Source: http://en.wikipedia.org