Wikipedia
Chil-Ustun
Chil-Ustun Cave is located in the Southwest of Kyrgyzstan in the Osh Mountains, 3.5 km from Aravan.
The entrance to the cave forms a 15 meter tall and approximately 25 meter wide arc. The cave is 380 meters long. It is located in a rock formation at 1100 meters above sea level. The entrance is located on a steep, oblique rock face.
The cave's existence has been known since ancient times as attested by Arabic inscriptions on the walls.
The cave consists of 3 chambers of different sizes, connected with corridors and narrow openings. The largest chamber is 85 m X 40 m X 20 m in size.
Inside the cave, stalactites and stalagmites (columns) reach heights of over 50 meters. These forms vary in color, from white and cream to dark brown.