Shuanghedong Cave Network

{{short description|Cave network in china}}

{{Infobox cave

| name = Shuanghedong

| map = China

| other_name = 双河洞

| photo =

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| location = Suiyang County, Guizhou, China

| coords = {{Coord|28.24199|107.27608|name=Shuanghe Dongqun}}

| depth = {{convert|912|m|ft}}

| length = {{convert|437.4|km|mi}}

| survey =

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| discovery =

| geology = Limestone

| entrance_count = 111

| entrance_list = see text

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}}

Shuanghedong ({{zh|s={{linktext|双|河|洞}}|p=Shuānghédòng|l=twin rivers cave}}), is the longest cave in China,{{cite web|url=https://www.grottes-et-karsts-de-chine.org/npds/gkc_rsd_gro.php?gro_id=606&gro_id_res=606&gro_nom=Shuanghedongqun|title=Grottes et karsts de Chine 双河洞|access-date=2023-12-06}}.[http://www.suiyang.cn/html/26/n-26.html 视频：双河洞之谜 - 绥阳在线 _ 遵义市绥阳县门户网站][http://www.suiyang.cn/html/60/n-460.html 亚洲第一长洞——双河洞地质公园景区5月1日开园接待游客 - 绥阳在线 _ 遵义市绥阳县门户网站] in Asia, and the 3rd longest in the world as of May 2023.{{cite web|url=https://www.grottes-et-karsts-de-chine.org/npds/gkc_rsd_gro.php?gro_id=606&gro_id_res=606&gro_nom=Shuanghedongqun|title=Grottes et karsts de Chine Shuanghedongqun 双河洞|access-date=2023-04-21}}.{{cite web|title=Guizhou's Shuanghe Cave named longest cave in Asia|url=http://www.chinadaily.com.cn/a/201803/25/WS5ab71544a3105cdcf6514135.html}}{{cite web|title=Asia's longest cave has many wonders|url=http://www.chinadaily.com.cn/cndy/2018-03/27/content_35922683.htm}}{{cite web|title=Shuanghe Cave in SW China's Guizhou named longest cave in Asia|url=http://www.ecns.cn/visual/hd/2018/03-25/157426.shtml}}{{cite web|title=Guizhou's Shuanghe Cave named longest cave in Asia|url=http://www.xinhuanet.com/english/2018-03/24/c_137062943.htm|archive-url=https://web.archive.org/web/20180324200954/http://www.xinhuanet.com/english/2018-03/24/c_137062943.htm|url-status=dead|archive-date=March 24, 2018}}{{cite web|title=贵州绥阳双河洞探测长度超238公里 成亚洲第一长洞|url=http://dw.chinanews.com/chinanews/content.jsp?id=8475269&classify=zw&pageSize=6&language=chs}}{{cite web|title=贵州双河溶洞长度已达238公里|url=https://www.newscctv.net/219news/video.html?videoId=980E8F5D-E48C-2F1C-D2E1-FE390299C82B}}

It is located near the town of Wenquan in Suiyang County, Zunyi, Guizhou Province.[http://www.hongmeigui.net/deepandlong.php?stat=long Hong Meigui Cave Exploration Society :: Deep and Long Caves in China]

The cave contains numerous waterfalls, and at least three underground rivers, some of which contain cave shrimp, and fish weighing several pounds.[https://web.archive.org/web/20110720032527/http://www.gz.xinhuanet.com/zfpd/2009-03/25/content_16368806.htm 绥阳] Tadpoles, frogs, salamanders, insects, spiders, bats, leeches, blind fish, and mushrooms have also been found.

Since 1987, at least 20 expeditions from France and Japan have explored the cave.[http://www.gzwqw.com/Content.aspx?Pid=552 双河洞景区风光]

In May 2023 the network reaches 400 kilometers of development.{{cite web|author1=Jean Pierre Barbary |author2=Jean Bottazzi |url=https://www.grottes-et-karsts-de-chine.org/npds/article.php?sid=731|title=Grottes et karsts de Chine - Sur les traces de Xu Xiake - Shuanghedong 双河洞 400 km !|date=23 April 2023|access-date=29 April 2023}}