Between 1984 and 1987, the Sarawak cabinet approved the proposal but the boundaries need to be redrawn to avoid conflicts with areas designated for land development.

[2] When the national park was gazetted in 2005, the total protected areas was reduced to 59,917 hectares which extends from western side of Kelabit highlands to Tama Abu range of mountains in the south and Mount Murud in the north.

[3] The Kelabit Highlands is thought to developed from the rifted continental crust where water sediments were deposited before Borneo was separated from the mainland Eurasian Plate.

Pulong Tau National Park covers the water catchment area of Baram, Belait, Limbang, Tutong, Trusan, and Padas rivers.

Meanwhile, bird species found at the peaks of Mount Murud and Batu Lawi were Ochraceous Bulbul, and Mountain Blackeye.

Examples were: Wagler's Pit Viper (Trimeresurus wagleri), and Golden legged bush frog (Philautus aurantium).