High Quality Content by WIKIPEDIA articles! The Dinas Powys hill fort is an Iron Age hill fort located in Cwrt-yr-Ala Park, a half-a-mile north of the village of Dinas Powys in Glamorgan, south Wales. It is just one of several thousand hillforts to have been constructed around Britain during the British Iron Age, for reasons that are still debatable. The main fort at Dinas Powys was constructed on the northernmost point of the hill in either the third or 2nd century BCE, with two further constructs, known as the Southern Banks, being built further down on the southern end of the hill in the following 1st century BCE. It appears that occupation at the site ceased during the period of Roman Britain, but was re-inhabited by an Early Mediaeval settlement in the 5th century CE, who constructed further additions to the fort. The site was subsequently excavated by a team of archaeologists led by Leslie Alcock from 1954 through to 1958.