|Badbury Rings is an Iron Age hill fort in east Dorset, England, dating from 800 BC and in use until the Roman occupation of 43 CE. The 330 ft (100 m) high, 7 hectare fort is encircled by three 40 ft (15 m) ramparts and four Bronze Age round barrows indicating an earlier occupation. The fort is situated at the cross of two Roman roads, between Dorchester, Old Sarum (Salisbury), Bath and Hamworthy (Poole).|
Dorset fell to the Saxons late in the Saxon invasion of England, being held up by Bokerley Dyke on the Roman Road from Old Sarum. Local historian Roy Carr (2001) has suggested that the Saxons were held off by the threat of an army in the west, perhaps stationed at Badbury Rings. Carr has suggested that such a force could be one of the sources of the legends of King Arthur, and that Badbury could be the "Badon" of the legend of the Battle of Mons Badonicus.