CCS: The Ordnance Survey County Survey and the Historical Boundaries of Wales

The administrative boundaries depicted on the first edition county survey mapping undertaken by Ordnance Survey were the result of detailed investigations in the field. This talk will explore the process of how the boundaries were recorded what type of boundaries were printed on the maps and how the OS changed its policy during the survey of Wales. Some of the earlier mapping that informed the OS will be discussed and the digital outputs of this research will be demonstrated.

Scott Lloyd is the Research Manager at the Royal Commission on the Ancient and Historical Monuments of Wales and is currently recreating the historic administrative boundaries of Wales and working on a digital Historical Atlas of Wales. He has worked on the AHRC Funded Deep Mapping Estate Archives project which won the 2022 BCS Ordnance Survey Award and is currently involved with the Mapping the March project with Bristol University which will produce detailed maps of the medieval Marcher Lordships. He is also author of The Arthurian Place Names of Wales, published by the University of Wales Press in 2017.