If the boundaries of the District/Unitary Authority changed over time, this map will show all the different boundaries.
GB Historical GIS / University of Portsmouth, Barking and Dagenham District through time | Boundaries of District/Unitary Authority, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/unit/10056780/boundary
Date accessed: 25th January 2025
