Gunung Sewu Geopark or Sewu Mountains (Indonesian: Pegunungan Sewu) is a series of mountains stretching along the southern coast of Gunung Kidul Regency and Wonogiri Regency of Central Java, to Pacitan Regency of East Java in the island of Java, Indonesia. This is a national Geopark, which is also a member of Global Geopark Network (GGN), recognized by UNESCO in 2015.
These mountains are a unique karstic landscape, characterized by the phenomenon being present on the surface (eksokarst) and subsurface (endokarst). Surface phenomena include positive formations such as karst hills totalling ± 40,000 conical hills, negative formation of karstic valleys and karstic lake. The subsurface phenomenon includes karst caves consisting of no less than 119 caves with stalactites and stalagmites, and underground rivers. Because of the uniqueness of its ecosystem, the 1993 International Union of Speleology proposed the Karst Area of the Sewu Mountains to be classed as a natural world heritage site. In the caves are also found human fossils from the early stone age about 1.8 million years old, along with stone tools for hunting.
📍gunungkidul -UNESCO global geopark
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