In 1887, John Bartholomew's Gazetteer of the British Isles described Pen Y Graig like this:
Pen-y-Graig, mining vil., 3m. NW. of Llantrisaint, Glamorgan; P.O., T.O.
Additional information about this locality is available for Rhondda
Pen Y Graig through time
Pen Y Graig is now part of Rhondda; Cynon; Taff district. Click here for graphs and data of how Rhondda; Cynon; Taff has changed over two centuries. For statistics about Pen Y Graig itself, go to Units and Statistics.
GB Historical GIS / University of Portsmouth, History of Pen Y Graig, in Rhondda; Cynon; Taff and Glamorgan | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/24000
Date accessed: 23rd March 2025
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