Crimean caves
Caves of Crimea - within the Crimean-Caucasian speleological country there are two regions: Crimean and Greater Caucasus.
They are developed in carbonate rocks of the Upper Jurassic, participating in the structure of the Main Ridge of the Crimean Mountains, called Yayla. Here at present more than 700 underground karst forms have been studied, including 53 caves more than 100 m long and 18 natural mines deeper than 100 m.
Among the caves stand out Red (length 13100 m), Uzundzhinskaya (1500 m), Emine-Bair (length 1158 m, depth 125 m), Dzhur-Dzhur (750 m), Skelskaya (570 m), Ayanskaya (550 m), Yeni-Sala III (410 m), Hanging (401 m), Snake (310 m), Egiz-Tinakh I (255 m) and Mangupskaya (230 m).