Cadbury multivallate hillfort on the summit of Cadbury Hill, a natural and commanding ridge separating the Gordano Valley from the Somerset Levels.
Early Cadbury: c.1000-300BC, occupation & building of the first ramparts.
Middle Cadbury: 300BC-AD40/50, addition of the outer ramparts.
Late Cadbury: AD40/50-400, a possible Roman attack, indication of Roman barracks.