Boybuloq Cave
Boybuloq Cave (also known as Boy Bulok) is a limestone cave in Uzbekistan and the deepest known cave in Asia. It is located high in the Gissar Range of mountains, near to Dehibolo, Uzbekistan's highest village. The cave and wider area is inaccessible for much of the year due to snow. Long-known to local people because of a nearby spring the cave was first explored by speleologists in 1984. Since then expeditions have mapped of passages in the cave and reached a total depth of . The cave could potentially extend much deeper and become the deepest in the world.
Anou Boussouil
In 1950, it was explored to a depth of ; at that time it was known as the second-largest pit in the world. An expedition in 1980 found that the cave reaches a maximum depth of . It was briefly known as Africa's deepest cave before Anou Ifflis was explored to a depth of .