Being the only strict nature reserve in Bhutan, the reserve has an area of 609.5 km² and spans across Haa and Samtse Dzongkhags.

 

The park has an abundant variety of genetic species and ecosystem diversity of global importance. With its diverse tropical to alpine vegetation, it is home to wildlife such as Takin, Serow, Red panda, Himalayan musk deer, Himalayan thar, Tiger, Common leopard and Clouded leopard.