It also acts as an alternative for Federal Route 500 from Kota Kinabalu to Tenom which is nowadays somewhat under-use.

[2][3] As a result, climbing road lanes are provided at steep sections.

A gravity hill induced by optical illusion is located 11 kilometres (6.8 mi) from Keningau.

The punishing steep gradient made it necessary for the lorries to make frequent stops and replenish their water-cooling tanks.

From the high vantage point of Dimie Resort there is a panaromic view of the Brunei Bay and the Klias Bay to the west and glimpse of the Keningau Plain.