Castle an Dinas, St Columb Major

Castle an Dinas is an Iron Age hillfort at the summit of Castle Downs near St Columb Major in Cornwall [1]. It dates from around the 3rd to 2nd century BCE and consists of three ditch and rampart concentric rings, 708 feet above sea level [1]. During the early 1960s it was excavated by a team led by Dr Bernard Wailes of the University of Pennsylvania during two seasons of excavation [1]. The earliest written history was written by William of Worcester during his visit to Cornwall in 1478, who described it as ruined, and said "it lies on a high hill and a spring rises in the midst of the castle" [1]. He also recorded a legend associated with it, that "Tador Duke of Cornwall, husband of the mother of Arthur was slain" at Castle an Dinas [1].