The situation, character, and antiquarian history of South Cadbury Castle, Somerset, have already been described (Alcock (1967a); (1967b)). A reconnaissance excavation in 1966 hinted that occupation of the hilltop had begun in the Early Neolithic, and after a hiatus had been resumed sometime in the Late Bronze Age. It demonstrated that from early in the pre-Roman Iron Age there was a rich and intensive occupation, during which the defences were probably built. This appeared to have been ended by a sack at the hands of the Roman invaders c. A.D. 45. Late Roman pottery, metalwork, and coins showed that activity was renewed in the third-fourth centuries A.D. Imported pottery of well-known forms proved that the site was reused in the fifth—sixth centuries. Finally, it was refortified with a mortared stone wall as a Late Saxon burh. The reconnaissance also showed that on top of the hill (fig. 1, c) rock-cut pits and post-holes were readily discernible under the turf; that on the slopes within the defences (fig. 1, B) traces of buildings of various dates had survived many centuries of ploughing; and that in the rear of the inner rampart (fig. 1, A), a great depth of hill-wash and plough-soil overlay stratified levels of the Iron Age.