Mount Sibayak

{{Short description|Stratovolcano in northern Sumatra}} {{Infobox mountain | name = Mount Sibayak | other_name = ''Gunung Sibayak (Indonesian)''<br /> ''Deleng Sibayak (Karo)'' | image = Medan (5953779938).jpg | image_caption = Sibayak seen from the Southeast | elevation_m = 2181 | elevation_ref = | prominence = | listing = Ribu | location = Sumatra, Indonesia | range = | coordinates = {{coord|3|14|21|N|98|30|20|E|type:mountain}} | map = Indonesia Sumatra | topo = | type = Stratovolcano | age = | volcanic_arc = Sunda Arc | last_eruption = 1881 | first_ascent = | easiest_route = }}

'''Mount Sibayak''' ({{langx|id|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. Mount Sibayak is relatively easy to climb and has been a tourist attraction since colonial times.

<gallery style="font-size:90%"> File:Gunung Sibayak 2015-05-24.jpeg|Crater of Gunung Sibayak. Mount Sinabung in the back. File:COLLECTIE TROPENMUSEUM Grand Hotel Brastagi aan de voet van de vulkaan Sibayak TMnr 60021770.jpg|Mount Sibayak in the 1920s File:COLLECTIE TROPENMUSEUM De Sibajak raja berampat - de zogenaamde viervorsten - met hun vrouwen Karolanden Noord-Sumatra TMnr 10005425.jpg|The "Sibajak raja berampat", the so-called four princes with their wives, Karolanden, North Sumatra (1914–1919) </gallery>On July 11, 1979, a Fokker F28 operating under Garuda Indonesian Airways crashed into this mountain.

== See also == * List of volcanoes in Indonesia

== References == * {{cite gvp | 1=261070 | 2=Sibayak}}

== External links == * {{Commons category-inline|Sibayak}} * [http://www.dharssi.org.uk/travel/Indonesia/berastagi.html Photos of gunung Sibayak and gunung Sinabung]

Sibayak Sibayak Sibayak Sibayak Category:Volcanic crater lakes Category:Geothermal energy in Indonesia Category:Landforms of North Sumatra Category:Deli basin