{"id":2865,"date":"2026-10-03T13:35:11","date_gmt":"2026-10-03T21:35:11","guid":{"rendered":"https:\/\/cave-exploring.com\/?page_id=2865"},"modified":"2026-10-03T13:35:15","modified_gmt":"2026-10-03T21:35:15","slug":"longest-cave-formations-speleothems","status":"publish","type":"page","link":"https:\/\/cave-exploring.com\/index.php\/long-and-deep-caves-of-the-world\/longest-cave-formations-speleothems\/","title":{"rendered":"Longest Cave Formations (Speleothems)"},"content":{"rendered":"\n

Compiled by: Dave Bunnell<\/em><\/p>\n\n\n\n

Visit his site at http:\/\/www.goodearthgraphics.com\/virtcave\/largest.htm <\/a>for photos and updates <\/p>\n\n\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Feature<\/th>Length<\/th>Location<\/th>\n<\/tr>\n<\/thead>\n
Longest column<\/td>61.5 meters<\/td>Tham Sao Hin, Thailand<\/td>\n<\/tr>\n
Tallest unitary stalagmite<\/td>72.76 meters<\/td>YuLongdong, Guangxi Province, China<\/td>\n<\/tr>\n
Tallest stalagmite in a cluster<\/td>70 meters<\/td>Hang Son Doong, Vietnam<\/td>\n<\/tr>\n
Longest free-hanging stalactite<\/td>28 meters<\/td>Gruta do Janelao, Brazil<\/td>\n<\/tr>\n
Longest single soda straw<\/td>9.13 meters<\/td>Wonder Cave, Gunung Mulu, Malaysia<\/td>\n<\/tr>\n
Longest soda straw grouping<\/td>9.03 meters plus several over 8 meters<\/td>Unnamed cave, Mexico<\/td>\n<\/tr>\n
Tallest gour (rimstone dam)<\/td>22 meters<\/td>Actun Kotob, Belize<\/td>\n<\/tr>\n
Longest single gour in a cave<\/td>61 meters<\/td>Xe Bang Fai Cave, Laos<\/td>\n<\/tr>\n
Longest single gour, formed on the surface (1) <\/td>610 meters long<\/td>Wadi Sannur Cavern, Egypt <\/td>\n<\/tr>\n
<\/td>20 meters high<\/td><\/td>\n<\/tr>\n
Longest connected gour series<\/td>400 meters<\/td>Tinas Tepe Magara, Turkey<\/td>\n<\/tr>\n
Flowstone cascade with greatest vertical extent<\/td>150 meters<\/td>Neverland to Dead Sea,Lechuguilla Cave, New Mexico<\/td>\n<\/tr>\n
<\/td><\/td><\/td>\n<\/tr>\n
Longest continuous formation, white calcite crust in a stream channel<\/td>12+ miles surveyed, continues on…<\/td>Snowy River Passage, Fort Stanton Cave, New Mexico (as of february 2026)<\/td>\n<\/tr>\n
<\/td><\/td><\/td>\n<\/tr>\n
<\/td><\/td><\/td>\n<\/tr>\n
Longest gypsum flower petal (supported)<\/td>1.98 meters<\/td>Double Bopper Cave, Arizona, USA<\/td>\n<\/tr>\n
<\/td><\/td><\/td>\n<\/tr>\n
(1) Wadi Sannur is a rare type of cave formed by roofing over of a giant surface gour at its spillover point. The gour was formed by a large thermal spring.<\/td><\/td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Compiled by: Dave Bunnell Visit his site at http:\/\/www.goodearthgraphics.com\/virtcave\/largest.htm for photos and updates<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2107,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2865","page","type-page","status-publish","hentry"],"yoast_head":"\nLongest Cave Formations (Speleothems) - Cave-Exploring.Com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cave-exploring.com\/index.php\/long-and-deep-caves-of-the-world\/longest-cave-formations-speleothems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Longest Cave Formations (Speleothems) - Cave-Exploring.Com\" \/>\n<meta property=\"og:description\" content=\"Compiled by: Dave Bunnell Visit his site at http:\/\/www.goodearthgraphics.com\/virtcave\/largest.htm for photos and updates\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cave-exploring.com\/index.php\/long-and-deep-caves-of-the-world\/longest-cave-formations-speleothems\/\" \/>\n<meta property=\"og:site_name\" content=\"Cave-Exploring.Com\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-03T21:35:15+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cave-exploring.com\\\/index.php\\\/long-and-deep-caves-of-the-world\\\/longest-cave-formations-speleothems\\\/\",\"url\":\"https:\\\/\\\/cave-exploring.com\\\/index.php\\\/long-and-deep-caves-of-the-world\\\/longest-cave-formations-speleothems\\\/\",\"name\":\"Longest Cave Formations (Speleothems) - 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