Gunung Sewu

Gunung Sewu (Thousand mountains)[1] 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 speleologs 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.[2]

It is a region where archaeological evidence shows very early human activity [3]

It is very popular with cavers.[4][5] There are 119 caves below of about 40,000 karst cone hills in 13,000 square kilometer area.[2] The only cave-adapted crab from Java, Sesarmoides jacobsoni (Sesarmidae), is 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.[6]

References
  1. Despite the term 'mountain' they are hills in size, specially in comparison to the nearby volcanoes of Central Java
  2. "April 8, 2012 - Karst Pegunungan Sewu".
  3. 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
  4. http://indahnesia.com/indonesia/JAWSEW/gunung_sewu.php
  5. 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
  6. Ida Ayu Made Sadnyari (September 20, 2015). "Susul Batur di Bali, Gunung Sewu Dinobatkan sebagai Geopark Kelas Dunia".

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