The boldest masses of rock rise on the south precipitously, but there are fangs of rock that shoot up over the small plateau that forms the summit of the hill.

The whole of the summit is surrounded by a double wall in a very ruinous condition, and this is to a considerable extent due to the smallness of the stones of which it was composed. The faces of the walls were to be traced only by digging, and were never more than doubtful.

Both walls appear to have been 10 feet thick, perhaps a little more; the outer, when perfect, might have had a height of 4 to 4½ feet, whilst the inner, judged by the débris, appears to have been 6 to 7 feet high.

The space between the walls varied, owing to the inequalities of the ground, but was generally 10 feet wide.

The area inclosed by the innermost wall amounts to close on one and a half acres; the total amount included within the outer wall is about two and a half acres of ground.

The circumference is very much broken up, as is also the inclosed area, by considerable masses of protruding rocks. About these, within the camp, heaps of small stones had been piled up, forming cairns. The largest and most notable of these is at the south-west, and consists of a core of rock about which an immense accumulation of stones has been heaped. All these cairns were thoroughly explored. They covered no interments, and although they disclosed evidences that fires had been lighted against the rocks, and that people had camped there for a while, they showed no tokens of structural erection, as though they were ruinous huts built against the native rock. The huge cairn was removed with great labour, and revealed nothing whatever beneath it but one flint flake.

These cairns, there can be little doubt, were collections of stones for the use of the besieged, to serve as missiles, or for the repair of the walls.

Within the area of the camp are a few hut circles. One near the centre is double, and contained an incredible number of flint chips, a flint scraper, and a core from which flakes had been struck. The whole area is littered with flint chips that are brought up by the moles when making their burrows, and curiously enough not a single arrow-head or flake that can be confidently set down as a weapon has been disinterred. The pottery found is all of the hand-made cooking-vessel type.

To the east is a circle sheltered on one side by a mass of rock, that has a second chamber, a sort of bedroom made under a slab of rock, with the interstices on all sides built up, except only on that by which it was entered from the hut. A good deal of flint was found there. Outside, on the south, was another hut circle, where a piece of clear quartz crystal was found, together with a flint knife that had one edge serrated by use.