The Nakawan Range ( Malay: ) is a

karstic Karst () is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. There is some eviden ...

hill range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

– part of the

Tenasserim Hills The Tenasserim Hills or Tenasserim Range (, ; , , ; ) is the geographical name of a roughly 1,700 km long mountain chain, part of the Indo-Malayan mountain system in Southeast Asia. Despite their relatively scant altitude these mo ...

– straddling northeast–southwest along the border between the

Malaysian state Malaysia is a federation of thirteen states and three federal territories, which form the primary administrative divisions of the country. Eleven states and two territories are part of Peninsular Malaysia, while two states and one territory ...

Perlis Perlis (Kedah Malay language, Kedah Malay (Perlis dialect): ''Peghelih'') is a Negeri, state of Malaysia in the northwestern coast of Peninsular Malaysia. It is the smallest state in Malaysia by area and population. The state borders the Thai ...

and the southern Thai

province A province is an administrative division within a country or sovereign state, state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire, Roman Empire's territorial possessions ou ...

Satun Satun (, , ) is a town ('' thesaban mueang'') in southern Thailand, capital of the Satun province. It covers the whole ''tambon'' Phiman of Mueang Satun. Satun lies 985 km south of Bangkok. As of 2005 it has a population of 21,498. Climat ...

for approximately . Geologically, it is part of the Setul Group. Most of Nakawan Range is included in Perlis State Park, which includes two forest reserves; Mata Ayer Forest Reserve and Wang Mu Forest Reserve, with a total area of about 5,000 hectares. The range is noted for its biodiversity. Birders have sighted over 130 unique species of birds in the contiguous Important Bird Area. The site was designated as an

Important Bird Area An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations. IBA was developed and sites are identified by BirdLife Int ...

of Malaysia in 2007. The Nakawan Range is also known for its opportunities for caving and as the setting of the Nakawan Ultra marathon race.

References

Mountain ranges of Malaysia {{Perlis-geo-stub