Kayan Mentarang National Park

Kayan Mentarang National Park is a densely forested national park located in the Indonesian province of North Kalimantan, on the island of Borneo. The national park is named after a great dispersed Mentarang mountain trails plateau of Apau Kayan which covers the entire park from Datadian area in south region to Apau Ping area in mid region until Long Bawan in north region.

Source: Wikipedia