The hill fort on the top of the hill has never been systematically excavated, but the land and ditch are sharply defined and well preserved. The Beacon Hill camp, (scheduled ancient monument number 7) built around 1000 BC, was probably inhabited by around 2-3000 people according to calculations from similar camps. It is one of a number of hillforts, which are strung out along the north-facing scarp of the Hampshire Downs, overlooking the Kennet valley to the north. When originally built, these structures must have looked spectacular even from a distance as their white chalk ramparts caught the sun.