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In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Treffynon like this:
TREFFYNON, a village in Llanddausaint parish, Anglesey; 5½ miles W of Llanerchymedd.
Treffynon is now part of ISLE OF ANGLESEY District. Click here for graphs and data of how ISLE OF ANGLESEY has changed over two centuries. For statistics about Treffynon itself, go to Statistics.
How to reference this page:
GB Historical GIS / University of Portsmouth, History of Treffynon, in the Isle of Anglesey and Anglesey | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/26317
Date accessed: 10th November 2025
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Treffynon".
