Neora Valley National Park covers an area of 88 km2 (34 sq mi) with an elevation of 183–3,200 m (600–10,499 ft).[3] The highest point is Rachela Danda. Much of the park is still inaccessible. It borders Pakyong District and Samtse Bhutan.[citation needed] The Neora River is the major water source for Kalimpong town.[citation needed]
Neora Valley sustains a unique ecosystem where tropical, sub-tropical, sub-temperate, and temperate vegetative system still harbours a wealth of flora and fauna. The forests consists of mixed species like rhododendron, bamboo, oak, ferns, sal, etc. The valley also has numerous species of orchids, some of which are endemic to the park. Common species of rhododendron that grow in the park include Rhododendron arboreum, Rhododendron falconeri, and Rhododendron dalhousiae.[5]
^"WildBengal". Wildlife Wing, Directorate of Forests Government of West Bengal. 2017. Archived from the original on 5 March 2016. Retrieved 19 April 2018.