|Gunung Sibayak (Indonesian)|
Deleng Sibayak (Karo)
|Elevation||2,181 m (7,156 ft)|
Mount Sibayak (Indonesian: Gunung Sibayak) is a stratovolcano overlooking the town of Berastagi in northern Sumatra, Indonesia. Although its last eruption was more than a century ago, geothermal activity in the form of steam vents and hot springs remains high on and around the volcano. The vents produce crystalline sulfur, which was mined on a small scale in the past. Seepage of sulfurous gases has also caused acidic discolouration of the small crater lake.
Crater of Gunung Sibayak. Mount Sinabung in the back.
On July 11, 1979, a Fokker F28 operating under Garuda Airlines crashed in Mount Sibayak.
Media related to Sibayak at Wikimedia Commons