Mount Kinabalu In Malaysia is the important mountain. Mount Kinabalu is a prominent mountain in Southeast Asia, located in Kinabalu National Park on the island of Borneo. The mountain is the fourth tallest in Southeast Asia and the tallest in Malaysia. Mount Kinabalu is also the 20th highest peak in the world in terms of prominence.The mountain and its surroundings feature a huge variety of flora, and is one of the world’s most important biosheres.