Mount Api ( ms, Gunung Api) is a

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms wh ...

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...

located in

Gunung Mulu National Park The Gunung Mulu National Park is a national park in Miri Division, Sarawak, Malaysia. It is a UNESCO World Heritage Site that encompasses caves and karst formations in a mountainous equatorial rainforest setting. The park is famous for its c ...

Sarawak Sarawak (; ) is a state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the Malaysian state of Sabah to the northeast, ...

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

. Neighbouring Mount Benarat and

Mount Buda Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish ...

are part of the same formation. Mount Api is famous for its striking limestone karst formations, commonly called "the pinnacles".Bourke, G. 2011. The ''Nepenthes'' of Mulu National Park. '' Carniflora Australis'' 8(1): 20–31. The mountain is host to many

caves A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...

, with passages linking to the massive

Clearwater Cave The Clearwater Cave System ( ms, Gua Air Jernih) in Gunung Mulu National Park, Sarawak, Malaysia is believed to be one of the largest interconnected cave systems in the world by volume and the 9th longest cave in the world at (2020). The system l ...

system.

Api Chamber Api Chamber is a chamber in Whiterock Cave in Mount Api, Gunung Mulu National Park, Sarawak, Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territori ...

, the second-largest chamber in Malaysia, was discovered on Mount Api during the Benarat 2005 Caving Expedition. Mount Api is notable for its

pitcher plant Pitcher plants are several different carnivorous plants which have modified leaves known as pitfall traps—a prey-trapping mechanism featuring a deep cavity filled with digestive liquid. The traps of what are considered to be "true" pitcher p ...

diversity, which includes at least eight species: '' Nepenthes campanulata'', ''

Nepenthes faizaliana ''Nepenthes faizaliana'' is a tropical pitcher plant endemic to the limestone cliffs of Gunung Mulu National Park in Sarawak, Borneo. It is thought to be most closely related to '' N. boschiana''.Clarke, C.M. 1997. '' Nepenthes of Bo ...

'', '' Nepenthes hurrelliana'', ''

Nepenthes lowii ''Nepenthes lowii'' , or Low's pitcher-plant,Phillipps, A. & A. Lamb 1996. '' Pitcher-Plants of Borneo''. Natural History Publications (Borneo), Kota Kinabalu. is a tropical pitcher plant endemic to Borneo. It is named after Hugh Low, who discov ...

'', '' Nepenthes muluensis'', '' Nepenthes tentaculata'', ''

Nepenthes veitchii ''Nepenthes veitchii'' (; after James Veitch, nurseryman of the Veitch Nurseries), or Veitch's pitcher-plant,Phillipps, A. & A. Lamb 1996. '' Pitcher-Plants of Borneo''. Natural History Publications (Borneo), Kota Kinabalu. is a ''Nepenthes'' s ...

'', and '' Nepenthes vogelii''.

References

{{Coord missing, Malaysia Api