A snub-nosed monkey cub plays between tree branches in Shennongjia forestry district, Hubei province, May 29, 2017. [Photo/Xinhua]

Location: Central China's Hubei province

Total area: 1,170 square kilometers

Shennongjia is situated in the west of the province, not far from the entrance to the Three Gorges. It's part of a number of mountain ranges that close to the Sichuan Basin on its eastern side. Shennongjia is the higher point at about 3,000 meters in elevation.

All the mountains are karstic, a kind of lime that turns into a gigantic sponge-like form with cavities that range from the size of your finger to those of caves.