<Tr> <Th> Established </Th> <Td> 1999 </Td> </Tr> <Tr> <Th> Governing body </Th> <Td> Government of India, Government of Sikkim </Td> </Tr> <P> Pangolakha Wildlife Sanctuary (Pron: pǽngólɑ́kha, Nepali: पाङ्लखा) is a wildlife reserve in the East Sikkim district of the state of Sikkim in India . It is about 30 kilometres (19 mi) east of Rangpo and about 45 kilometres (28 mi) by road from Rangpo city . The total notified area of the park is around 124 square kilometres (48 sq mi) while inside the wildlife sanctuary there are a few hamlets: Aritar, Lingtam, Phadamchen, Zuluk, Gnathang valley and Kupup . This wildlife sanctuary is linked to the forests of Bhutan and Neora Valley National Park of West Bengal . The area that comes under this biosphere has been declared in the year of 1999 as an wildlife sanctuary under biogeographic province category 2C . </P> <P> Altitudinal range of the sanctuary lies between 1760 metres to 4390 meters . Pangolakha range in the east separates Sikkim from its eastern neighboring country Bhutan . Whereas it is linked through forest patches with to the south by Neora Valley National Park of West Bengal . Some high altitude lakes are present there, which acts as a biodiversity hotspot for migratory birds, like Tsongmo . Rivers and riverine tributaries from north are frozen from December to March; whereas all these riverine tributaries and rivers flow with enormous volume of water during Rainy season (i.e. from Mid April to Mid October). </P>

The pangolakha wildlife sanctuary (pws) is located in which state