 In eastern Myanmar the highest point of the Shan Hills is 2,563 m high Loi Pangnao, one of the ultra prominent peaks of Southeast Asia.The Shan Hills form, together with the Karen Hills, Dawna Range and Tenasserim Hills, a natural border with Thailand as well as the Kayah-Karen/Tenasserim moist forests ecoregion which is included in the Global 200 list of ecoregions identified by the World Wildlife Fund (WWF) as priorities for conservation.Southern Myanmar consists largely of the western slopes of the Bilauktaung, the highest part of the Tenasserim Range, which extends southwards forming the central range of the Malay Peninsula.