Physical geography
Physical geography: The park is part of the Eastern Himalayas. The Singalila Ridge, which runs roughly North to South and separates Himalayan West Bengal from the other Eastern Himalayan ranges to the west of it. The two highest peaks of West Bengal, Sandakphu (3630 m) and Phalut (3600 m), are located on the ridge and inside the park. River Rammam and River Sirikhola flow through the park.