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In 1887, John Bartholomew's Gazetteer of the British Isles described Ynysddu like this:
Ynysddu, ry. sta., Monmouthshire, 4 miles NW. of Risca and 2 miles S. of Tredegar Junction.
Ynysddu is now part of CAERPHILLY District. Click here for graphs and data of how CAERPHILLY has changed over two centuries. For statistics about Ynysddu itself, go to Statistics.
How to reference this page:
GB Historical GIS / University of Portsmouth, History of Ynysddu, in Caerphilly and Monmouthshire | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/24075
Date accessed: 08th April 2026
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Ynysddu".
