The oldest geological formation in Malaysian is on Pulau Langkawi (Langkawi Island). This geological formation is the Machinchang formation, formed about 550 to 505 million years ago (geological age - middle to late Cambrian Period). The formation consists of sandstone with some mudstone and conglomerate.
The name Machinchang (sometime referred to as Mat Cincang)is derived from the long serrated quartzite ridge of five peaks that makes up the formation – the word cincang in Malay means ‘chopped-up’.
The formation extend over the north-western part of Pulau Langkawi, where Gunung Machinchang (MountMachinchang) is located. It also forms part of Pulau Rebak Besar and Pulau Jemuruk.
A clear view of MountMachingcang and the surroundings is seen from the OrientalVillage - where you get to take the cable car up the mountain.