Over 700 flint arrowheads were found scattered at the site. Despite nineteenth-century destruction (work to level and widen the entrance track), there was a concentration of arrow heads around a probable entrance to the enclosure, Mercer's site E. These arrows may have been used by a large group of archers in an organized assault upon a defended site. Every timber structure on the site had been burnt, and charcoal was the only organic matter that survived the acid soils. The earthworks may have been deliberately damaged by invaders.