Ancient Welsh sites revealed during dry weather
Recent dry weather conditions have revealed a number of prehistoric and Roman sites across Wales.
The discoveries included one prehistoric defended enclosure in Pembrokeshire and another one in Gower.
Toby Driver from the Royal Commission on the Ancient and Historical Monuments of Wales said the aerial survey revealed many "surprises".
Work to catalogue and record the discoveries is expected to continue into the winter months.
Dr Driver said they had discovered about 20 new Iron Age farm sites in Pembrokeshire this summer, which showed that the county was farmed then almost as intensively as it is today.
He said there were now about 400 Iron Age sites which had been identified in the area.
Among the discoveries was a defended farm from that period which had also been revealed in south Pembrokeshire, next to an oil refinery which had been developed in the 1960s.
"It's absolutely amazing to have found all these Iron Age farms in Pembrokeshire - I think it will lead to some academic research into why there were so many of them," he said.