All information on soils were from the Land Resource Study 20 series of books
(Volumes 1 to 5), published by the Land Resources Division, Ministry of Overseas
Development , UK.
Mentapok Association is extensive on mountain ranges composed of basic and
intermediate igneous rocks.
the Meliau Range,
ranges to the east and west of the Mananam Plain,
the watershed of the Segama and Kinabatangan, and
extensively in the mountainous half of the Lahad Datu District to the west of
with moderate to very steep hills with moderate to very steep slopes. Ridge crests are narrow.