[1] It harbours evergreen and mixed deciduous forest with elevations ranging from 0 to 355 m (1,165 ft) in Bilin Township, Mon State.

[citation needed] The sanctuary receives south-west Monsoon rains every year.

[3] The Shwe Parami Forest Monastery and the Kaylartha Pagoda is a famous pilgrimage site on the hillock inside the sanctuary.

The Keltha Pagoda is situated on 1,181 ft (360 m) high mountain on the edge of the Sittaung lowland Valley.

Teak (Tectona grandis), Antiaris toxicaria, Mesua ferrea, Pygeum anomalum, Ficus oligodon, Diospyros discolor, Baccaurea flaccida, Dipterocarpus alatus are the important tree species.