Heatwave Uncovers Dozens of Previously Unseen Archaeological Sites Across Wales
A sustained period of drought and extreme temperatures across Wales has unveiled a multitude of archaeological features, including 64 previously undocumented sites. The Royal Commission on the Ancient and Historical Monuments of Wales (RCAHMW) confirmed that the dry conditions have also provided unprecedented clarity on 68 known sites, some not seen clearly in decades.
Aerial reconnaissance conducted by RCAHMW investigators during the recent heatwave identified numerous cropmarks and parchmarks. These visible changes in vegetation growth, caused by buried structures or ditches affecting moisture retention, have revealed the outlines of ancient settlements and fortifications.
Among the discoveries are Iron Age hillforts, potentially dating back over 2,000 years, and Roman-era enclosures. These findings offer valuable new data for understanding historical land use and settlement patterns across the Welsh landscape.
The RCAHMW emphasised the ephemeral nature of these discoveries, noting that such conditions providing this level of visibility are rare. The organisation stated that the information gathered will be crucial for updating archaeological records and informing future conservation efforts.
