Belum-Temengor is the largest continuous forest complex in Peninsular Malaysia. Specifically, it is located in the Malaysian state of Perak and crosses into Southern Thailand. Belum-Temenggor is divided into two sections. Belum is located up north, right by the Malaysia-Thailand border, while Temenggor is south of Belum. The Royal Belum State Park is e…Belum-Temengor is the largest continuous forest complex in Peninsular Malaysia. Specifically, it is located in the Malaysian state of Perak and crosses into Southern Thailand. Belum-Temenggor is divided into two sections. Belum is located up north, right by the Malaysia-Thailand border, while Temenggor is south of Belum. The Royal Belum State Park is entirely contained within the forest complex. Bang Lang National Park is on the Thailand side of the border.