The Kinabalu Park covers an area of 754 sq km and is made up of Mount Kinabalu, Mount Tambayukon and the foothills. It was gazetted to preserve this valuable natural environment. The mountains have a fascinating geological history, taking 'just' a million years to form. The mighty Mount Kinabalu is actually a granite massif that was later thrust upwards through the crust of the surface.

Subsequent erosion removed thousands of feet of the overlying sand and mud stone, exposing this massif. During the Ice Age, glaciers running across the summit smoothed it out, but the jagged peaks that stood out above the ice surface remained unaffected, retaining the extremely ragged surfaces. This rugged mountain is the focal point of the National Park.