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This is a list of caves of the world that have articles or that are properly cited. They are sorted by continent and then country. They are sorted by continent and then country. Caves which are in overseas territories on a different continent than the home country are sorted by the territory's continent and name.
This list of deepest caves includes the deepest known natural caves according to maximum surveyed depth as of 2024. The depth value is measured from the highest to the lowest accessible cave point. The depth value is measured from the highest to the lowest accessible cave point.
Image credits: Mpmajewski #2 Marble Caves, Chile. Stunning series of caverns carved into solid marble by water over thousands of years. Located on Lake General Carrera, the caves are renowned for ...
Timpanogos Cave National Monument in Utah has one of the largest collections of these formations in the world. Large numbers are also in the Jenolan Caves in Australia and in the Pozalagua Cave in Karrantza, Spain. A remarkable suite of helictites also occurs in Asperge Cave, France. Can also be found in Black Chasm Cavern in California, USA.
Caves are found around the world. The largest form in areas of karst landforms whose rocks dissolve easily. Preferable conditions for karst cave formation are adequate precipitation, enough plants and animals to produce ample carbon dioxide, and a landscape of gentle hills which drains slowly.
The air in the cave is very different from the outer atmosphere. The level of oxygen is only a third to half of the concentration found in open air (7–10% O 2 in the cave atmosphere, compared to 21% O 2 in air), and about one hundred times more carbon dioxide (2–3.5% CO 2 in the cave atmosphere, versus 0.04% CO 2 in air).
Troglophiles - can live part or all of their lives in caves, but can also complete a life cycle in appropriate environments on the surface. [100] Trogloxenes - frequents caves, and may require caves for a portion of its life cycle, but must return to the surface. [100] Troglomorphism - the adaptations that allow the existence of troglofauna. [101]
At 150.4 miles (242.0 km), Lechuguilla Cave is the eighth-longest explored cave in the world [1] and the second deepest (1,604 feet or 489 meters) in the continental United States. [2] It is most famous for its unusual geology , rare formations , and pristine condition.