This a trunk road linking Ranau town to the state capital. It is the road constructed along the hills. Elevation can reached up to 1200++ metres. This is also the road leading to the infamous Mount Kinabalu National Park (The highest mountain in South East Asia), and it also stretches through a beautiful town called Kundasang. While the road has lots of twisties and fun to carve along, but the traffic has moderate to heavy traffic flows, due to tourist visits, transports of goods to and flo Kota Kinabalu.