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The Jeju Volcanic Island and Lava Tubes (Korean: 제주 화산섬과 용암 동굴) is a World Heritage Site in Jeju Province, South Korea. [1] It was inscribed as one of the UNESCO World Heritage Sites in 2007 because of the Geomunoreum Lava Tube System and the exhibition of diverse and accessible volcanic features which are considered to demonstrate a distinctive and valuable contribution to ...
A lava tube system in Kiama, Australia, consists of over 20 tubes, many of which are breakouts of a main lava tube. The largest of these lava tubes is 2 meters (7 ft) in diameter and has columnar jointing due to the large cooling surface. Other tubes have concentric and radial jointing features. The tubes are infilled due to the low slope angle ...
A lava tube, or pyroduct, [1] is a natural conduit formed by flowing lava from a volcanic vent that moves beneath the hardened surface of a lava flow. If lava in the tube empties, it will leave a cave .
Ted Williams Tunnel; Transbay Tube This page was last edited on 29 May 2016, at 19:16 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4 ...
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Lava River Cave is a lava tube in northern Arizona's Coconino National Forest. At approximately 0.75-mile (1.21 km) long, it is the longest cave of its kind known in Arizona. At approximately 0.75-mile (1.21 km) long, it is the longest cave of its kind known in Arizona.