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gypsum that is less than 30 metres (98 ft) thick. The passages tend to be fairly small, no more than 3 metres (10 ft) wide and 1.5 metres (5 ft) tall for most, although at intersections they can be up to 10 metres (33 ft) tall. They are often choked with mud. They comprise a dense
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club "Cyclope" in 1966. It was entirely unknown before then. There have been more than 50 expeditions since then, but exploration has slowed significantly in recent years, and very little surveying is currently being done. The cave is located very close to the
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or Ozerna Cave, the eleventh-longest cave in the world at 130.4 km (81.0 mi), but the two caves have not yet been found to be connected.
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Optymistychna's gypsum bed is topped with a limestone layer, which has seeped through into the cave via erosion and formed into
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170:. Approximately 264 km (164 mi) of passageways have been mapped within. As a result, it is the
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article appearing in: International
Journal of Speleology, vol. 25, #3-4, 1996, p. 263-278.
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261:. At other places, the gypsum has formed crystals, often tinted a multitude of colors by
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This
English transliteration was used during the Soviet era but is now deprecated.
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461:"OPTYMISTYCHNA IS THE LONGEST CAVE IN UKRAINE - Information Portal Good News"
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Chapter II.9, Gypsum Karst in the
Western Ukraine by Alexander Klimchouk
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network on several levels, making
Optymistychna known as a "maze cave".
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542:. United States of America: Reader's Digest Association, Inc. pp.
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The Jewel Cave
Adventure: Fifty Miles of Discovery under South Dakota
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396:"Optimistic cave. Speleotourism. Active and extreme tourism. Travel"
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The entire cave lies under a 2 km square area in a layer of
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in Europe and the seventh-longest cave in the world, after
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Scheffel, Richard L.; Wernet, Susan J., eds. (1980).
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492:. Archived from the original on May 15, 2006
427:. Archived from the original on May 15, 2006
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889:Natural heritage sites in Ternopil Oblast
27:Gypsum cave system in Korolivka, Ukraine
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242:Speleothems inside Optymistychna Cave.
226:In 2008, the cave was recognized as a
143:: meaning "optimistic", also known as
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588:Evaporites: A Geological Compendium
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616:Official site of Optimistic cave
145:Peschtschera Optimistitscheskaya
848:Kyiv-Mohyla Academy (Old Podil)
335:. Academic Press. p. 830.
585:Warren, John K. (2016-05-18).
269:have formed, colored black by
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750:Shatsk National Natural Park
538:Natural Wonders of the World
730:Granite-steppe lands of Buh
687:Kamianets-Podilskyi Complex
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778:Kamianets-Podilskyi Castle
591:. Springer. p. 677.
510:: CS1 maint: unfit URL (
445:: CS1 maint: unfit URL (
228:Natural Wonder of Ukraine
194:. It is also the longest
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110:230 km (140 mi)
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879:Caves of Ternopil Oblast
843:St Volodymyr's Cathedral
486:"World's Longest Caves"
421:"World's Longest Caves"
265:. In some areas, large
858:Saint Sophia Cathedral
702:Saint Sophia Cathedral
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210:was discovered by the
332:Encyclopedia of Caves
303:List of longest caves
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91:48.74250°N 25.99361°E
833:House with Chimaeras
400:www.cave-ua.narod.ru
853:Kyiv Pechersk Lavra
838:Vydubychi Monastery
788:Metropolitan Palace
682:Kyiv Pechersk Lavra
465:ukrainegoodnews.com
198:cave in the world.
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773:Lutsk Upper Castle
572:2009-03-24 at the
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96:48.74250; 25.99361
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783:Akkerman Fortress
192:Sistema Ox Bel Ha
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154:located near the
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884:Gypsum caves
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740:Marble Caves
725:Askania-Nova
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494:. Retrieved
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484:Guden, Bob.
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403:. Retrieved
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214:of the Lviv
208:cave complex
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188:Shuanghedong
176:Mammoth Cave
172:longest cave
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141:Оптимістична
132:
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826:and descent
697:Chersonesus
259:speleothems
158:village of
94: /
70:Coordinates
54:village of
873:Categories
692:Khortytsia
669:Historical
496:5 November
470:2017-06-28
431:5 November
405:2017-06-28
367:. p.
309:References
184:Jewel Cave
82:25°59′37″E
79:48°44′33″N
490:Caver Bob
425:Caver Bob
160:Korolivka
156:Ukrainian
137:Ukrainian
115:Discovery
56:Korolivka
52:Ukrainian
570:Archived
506:cite web
441:cite web
359:(1977).
297:See also
47:Location
717:Natural
661:Ukraine
256:calcite
234:Geology
202:History
147:) is a
123:Geology
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339:
196:gypsum
149:gypsum
126:gypsum
107:Length
277:Notes
50:near
813:Kyiv
593:ISBN
548:ISBN
512:link
498:2020
447:link
433:2020
373:ISBN
337:ISBN
206:The
190:and
152:cave
118:1966
544:282
369:230
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
