'''Gunung Sewu''' (Thousand mountains)<ref>Despite the term 'mountain' they are hills in size, specially in comparison to the nearby volcanoes of Central Java</ref> is the name for the [[karst]] region of southern central [[Java]] that lies to the south east of [[Yogyakarta]], south of [[Surakarta]], and is considered a very dry and poor socio-economical region in Java. It has poor rainfall compared to the volcanic mountain areas to the north and east. Administratively most of the region is part of [[Gunung Kidul Regency]], within the [[Yogyakarta]] province besides [[Wonogiri Regency]] and [[Pacitan Regency]]. In 1993, the world [[Speleology|speleolog]]s proposed Sewu Mountains Karst Area as a world heritage. And on December 6, 2004 Sewu Mountains and South Gombong have been announced as eco-karst.<ref name=Sewu>{{cite web|title=April 8, 2012 - Karst Pegunungan Sewu|url=http://koran-jakarta.com/index.php/detail/view01/87943}}</ref>
It is a region where archaeological evidence shows very early human activity <ref>Truman Simanjuntak (editor) (2002) ''Gunung Sewu in prehistoric times''. reader, [[John N. Miksic]]. Gadjah Mada University Press in Bulaksumur, Yogyakarta, Indonesia. {{ISBN|979-420-501-X}}</ref>
It is very popular with cavers.<ref>{{Cite web |url=http://indahnesia.com/indonesia/JAWSEW/gunung_sewu.php |title=Indahnesia.com - Java island - Gunung Sewu - A paradise for cave explorers - Discover Indonesia Online |access-date=2010-10-04 |archive-date=2010-10-31 |archive-url=https://web.archive.org/web/20101031233206/http://indahnesia.com/indonesia/JAWSEW/gunung_sewu.php |url-status=dead }}</ref><ref>Stoddard, S. (1985). Anglo-Australian Speleological Expedition to Java. Cave Science, 12(2):49–60: Willis, R.G., Boothroyd, C. & Briggs, N. (1984). The caves of Gunung Sewu, Java. Cave Science, 11(3):119–53. Waltham, A.C., Smart, P.L., Friederich, H., Eavis, A.J. & Atkinson, T.C. (1983). The caves of Gunung Sewu, Java. Cave Science, 10(2):55–96</ref> There are 119 caves below of about 40,000 karst cone hills in 13,000 square kilometer area.<ref name=Sewu/> The only [[Troglobite|cave-adapted]] crab from Java, ''[[Sesarmoides jacobsoni]]'' ([[Sesarmidae]]), is [[Endemism|endemic]] to the Gunung Sewu cave system.
==Global Geopark Network UNESCO== {{See also|Gunung Sewu Geopark}} On September 19, 2015 UNESCO announced Gunung Sewu area as Global Geopark Network follows [[Mount Batur]] area. Gunung Sewu area lays 85 kilometers in 3 provinces, [[Yogyakarta]] Province, [[Central Java Province]] and [[East Java Province]]. The longest cave found at Gunung Sewu area is 25 kilometers Luweng Jaran and the deepest is 200 meters Luweng Ngepoh.<ref>{{cite web |url=http://bali.tribunnews.com/2015/09/20/susul-batur-di-bali-gunung-sewu-dinobatkan-sebagai-geopark-kelas-dunia |title=Susul Batur di Bali, Gunung Sewu Dinobatkan sebagai Geopark Kelas Dunia |author=Ida Ayu Made Sadnyari |date=September 20, 2015}}</ref>
==References== {{reflist}}
{{coord missing|Indonesia}} {{Commons category|Gunung Sewu}}
[[Category:Java]] [[Category:Karst]]
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