Mount Sibayak

Mount Sibayak
Mount Sibayak
Gunung Sibayak (Indonesian); Deleng Sibayak (Karo)
	Sibayak seen from the Southeast
Highest point
Elevation	2,212 m (7,257 ft)
Listing	Ribu
Coordinates	3°14′21″N 98°30′20″E / 3.23917°N 98.50556°E
Geography
	Mount Sibayak Sumatra, Indonesia
Geology
Mountain type	Stratovolcano
Last eruption	1881

Mt. 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.

Sibayak is a term from the Karo Batak language referring to a founding community. It is relatively easy to climb and has been a tourist attraction since colonial times.

Crater of Gunung Sibayak. Mount Sinabung in the back.
Mount Sibayak in 1920s
The "Sibajak raja berampat", the so-called four princes with their wives, Karolanden, North Sumatra (1914-1919)