Wulong Karst

It is divided into three areas containing the Three Natural Bridges, the Qingkou Tiankeng (箐口天坑) and Furong Cave respectively.

[1] The Three Natural Bridges (simplified Chinese: 天生三桥; traditional Chinese: 天生三橋; pinyin: Tiānshēng Sān Qiáo), a series of natural limestone bridges located in Xiannushan Town (仙女山镇), Wulong County,[2] are the nucleus of a 22 km2 (8.5 sq mi) conservation area which includes the following features: The Qingkou Tiankeng Scenic Area (simplified Chinese: 箐口天坑景区; traditional Chinese: 箐口天坑景區) is located around Houping Township (后坪乡), Wulong District[3] and includes 5 tiankengs: and nearby caves.

This is the only currently known tiankeng cluster in the world hypothesized to have formed by surface water erosion.

[6] The cave is 2,846 m (9,337 ft) long and features numerous vertical shafts running through the limestone.

[7] Protected plants include Ginkgo biloba, Eucommia ulmoides, Taxus chinensis, Handeliodendron bodinieri, Liriodendron chinense, Juglans regia, Phellodendron chinense, Fagopyrum dibotrys, Cinnamomum camphora, Camptotheca acuminata, Actinidia chinensis, and Gynostemma pentaphyllum.