It is easy to overlook what it actually is: a deliberately constructed shelter, built from large sandstone boulders without mortar, its roof lintelled and slightly corbelled. Corbelling is an ancient technique in which stones are laid so that each course projects a little further inward than the one below, creating a self-supporting vault or ceiling without the need for timber or binding material. The result here is a compact but purposeful space, roughly 2.2 metres in one direction and 2.6 in the other.

The entrance is partly formed by a single large boulder, 0.6 metres high, with an opening just over half a metre wide and 1.6 metres tall. Inside, the floor does not simply level off; it slopes downward and continues underneath the entrance boulder itself, giving the interior a crouching, semi-subterranean quality. The standing height reaches only about 1.1 metres. Who built it, and when, is not recorded. Structures of this kind in upland areas are sometimes associated with seasonal herding, where cattle or sheep were driven to higher pastures in summer months and those tending them needed basic overnight shelter, though the specific history of this one remains unattributed. The choice of a natural ledge on such a precipitous slope suggests someone who knew the mountain well and understood how to make the terrain work in their favour.