Consisting of a roughly circular low earthen rampart surrounded by a ditch, Chanctonbury Ring is thought to date to the late Bronze Age or early Iron Age. The purpose of the structure is unknown but it could have filled a variety of roles, including a defensive position, a cattle enclosure or even a religious shrine. After a few centuries of usage, it was abandoned for about five hundred years until it was reoccupied during the Roman period. Two Romano-British temples were built in the hill fort's interior, one of which may have been dedicated to a boar cult.