the mountain was formed by glacial action and erosion and is characterised, for the most part, by the dolerite slabs and boulders typical of the alpine regions of the state. many of the summits in tasmania are rather obscure tors perched only slightly higher than the alpine plateau on which they sit. barn bluff, like cradle mountain, presents a classic summit. the mountain's nearest neighbours are quite distant and, therefore, the 360 degree panorama from the summit is uninterrupted and spectacular.[4]
