 Its fringing fault scarp – Kanangra Walls – comprises Permian sedimentaries of the Capertee Group which rests unconformably on a Devonian Lambie Group Basement.Nearby Kanangra Gorge is cut deep in rocks of the Lambie Group, and is one of Australia's deepest gorges.Cloudmaker and Guouogang are eroded remnants of Ordovician quartzite.