 Its southern end continues down the slope and its western end was cut by later activity.This feature is composed of an outer 'lining' of very large, roughly worked stones in its northeastern corner and northern wall, which enclosed layers of small-medium roughly rounded stones.Adjoining the eastern face of the stones is a rampart, partly capped by stones and composed of layers of chalky white material and dark brown soil, of which only the top has so far been excavated.