Peninsular Malaysia contains numerous mountain ranges running parallel from north to south along the peninsula. The main mountain range is the Titiwangsa Mountains, which divides the peninsula between its east and west coasts. It houses Mount Korbu, the second highest peak in the Peninsular. These mountains are heavily forested, and mainly composed of granite. The range is the origin of some of Peninsular Malaysia's river systems. To the east of this range is the Bintang Range. The highest peak in the Peninsular is Mount Tahan, located on the Tahan Range.