雙河洞(dong)(dong)(dong),國(guo)家地質(zhi)公園,2019年最(zui)新探測長(chang)度(du)為257.4公里,成亞洲第一、世界第五長(chang)洞(dong)(dong)(dong)。雙河洞(dong)(dong)(dong)國(guo)家地質(zhi)公園,位(wei)于貴(gui)州(zhou)省遵義市綏(sui)陽縣溫(wen)泉鎮,是中國(guo)最(zui)大(da)的溶洞(dong)(dong)(dong)群,也是“世界最(zui)長(chang)的白(bai)云(yun)巖洞(dong)(dong)(dong)穴”、“世界最(zui)大(da)的天青石(shi)洞(dong)(dong)(dong)穴”。
雙河(he)洞(dong)(dong)(dong)(dong)結構復雜,水洞(dong)(dong)(dong)(dong)、旱洞(dong)(dong)(dong)(dong)并存,深度超過(guo)550米,由上中(zhong)下四層8條(tiao)主洞(dong)(dong)(dong)(dong),200多條(tiao)支洞(dong)(dong)(dong)(dong),5條(tiao)地下河(he),34個洞(dong)(dong)(dong)(dong)口組(zu)成,可謂洞(dong)(dong)(dong)(dong)挨洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)連洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)上有(you)洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)下有(you)洞(dong)(dong)(dong)(dong)、洞(dong)(dong)(dong)(dong)中(zhong)套洞(dong)(dong)(dong)(dong),被譽為“喀斯特天然洞(dong)(dong)(dong)(dong)穴(xue)博物(wu)館”。
自1988年(nian)以來,雙河洞(dong)(dong)(dong)吸(xi)引(yin)了海外探險家持續探測31年(nian)之久(jiu)。截至2017年(nian)4月,完成(cheng)探測長(chang)度(du)達(da)200.427公里,是世(shi)界(jie)(jie)排名第十的長(chang)洞(dong)(dong)(dong)。雙河洞(dong)(dong)(dong)也(ye)是目(mu)前世(shi)界(jie)(jie)最長(chang)的白(bai)云巖和(he)世(shi)界(jie)(jie)最大的天青石洞(dong)(dong)(dong)穴。