A marble cave on the lower plateau of the Crimean Chatyr-Dag mountain range, Ukrainian SSR. The Grieving Mother leak formation.14.06.1991#8184290
A marble cave on the lower plateau of the Crimean Chatyr-Dag mountain range, Ukrainian SSR. The Cave Master leak formation.14.06.1991#8184285
A marble cave on the lower plateau of the Crimean Chatyr-Dag mountain range, Ukrainian SSR.14.06.1991#8184283
Georgian SSR. Gudauta area. Bzyb Range. The scientific expedition of Moscow speleologists at the entrance to the Snezhnaya cave system. The expedition members and their families.01.07.1981#2839600
Georgian SSR. Gudauta area. Bzyb Range. The scientific expedition of Moscow speleologists at the entrance to the Snezhnaya cave system (depth - 1760 meters).01.06.1981#2839601
The gold medal of the International Union of Speleology. Soviet speleologist, Doctor of Geology and Mineralogy Viktor Dublyansky was awarded the Gold Medal of the International Union of Cave Explorers for the development of world speleological science.01.07.1974#2886622
The gold medal of the International Union of Speleology. Soviet speleologist, Doctor of Geology and Mineralogy Viktor Dublyansky was awarded the Gold Medal of the International Union of Cave Explorers for the development of world speleological science.01.07.1974#2886621
Speleologists entering the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia.01.01.1966#735868
Paintings in the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia.01.01.1966#735867
A horse painting in the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia.01.01.1966#735866
Speleologists in the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia.01.01.1966#735865
A mammoth painting in the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia.01.01.1966#735864
Abkhazian Autonomous Soviet Socialist Republic. Shakuranskaya Cave is located in a gorge of the same name, in the Gulripshsky District (now Gulrypshsky District). A speleologist studies the underwater part of the cave.26.06.1965#6276660
Abkhazian Autonomous Soviet Socialist Republic. Shakuranskaya Cave is located in a gorge of the same name, in the Gulripshsky District (now Gulrypshsky District). Speleologists study stalactites in the cave.25.06.1965#6276662
Abkhazian Autonomous Soviet Socialist Republic. Shakuranskaya Cave is located in a gorge of the same name, in the Gulripshsky District (now Gulrypshsky District). A natural "sculpture" of a deer with a jerked-up head.25.06.1965#6276659
Abkhazian Autonomous Soviet Socialist Republic. Shakuranskaya Cave is located in a gorge of the same name, in the Gulripshsky District (now Gulrypshsky District). A speleologist studies stalactites in the cave.25.06.1965#6276658
Speleologists study Torgashinskaya cave, also called Bezdonnaya (Bottomless) or Torgashinsky Sink in Krasnoyarsk Territory.01.09.1964#6083227
Speleologists study Torgashinskaya cave, also called Bezdonnaya (Bottomless) or Torgashinsky Sink in Krasnoyarsk Territory.01.08.1964#6083240
Speleologists study Torgashinskaya cave, also called Bezdonnaya (Bottomless) or Torgashinsky Sink in Krasnoyarsk Territory.01.08.1964#6083226
Torgashinskaya cave or Torgashinsky gap. Photo: Scientists-spelunkers climb down to study the cave.17.07.1964#5754786
Rhinoceros painting in the Kapova Cave, a famous Paleolithic rock art site in the South Urals, Bashkortostan, Russia. Found by a 1962 expedition. Copied by I. Prokofayev.01.11.1962#762041
