Iron Age: Drones shed new light on ancient Welsh hillforts

Drone footage has given archaeologists a new way to study Iron Age hillforts in Wales.

Aberystwyth-based Toby Driver said there were "big stories" still to be told about 764 hillforts known to have been built before the Roman invasion.

Some rival the pyramids of Egypt in their scale, said Mr Driver, who has recently written a book about the subject.