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In 1887, John Bartholomew's Gazetteer of the British Isles described Penrhyn Slate Quarries like this:
Penrhyn Slate Quarries, Carnarvonshire, in 8. vicinity of Bethesda; the quarries are very extensive, giving employment to several thousand hands, and the slate is conveyed to Pert Penrhyn at Bangor.
Penrhyn Slate Quarries is now part of GWYNEDD District. Click here for graphs and data of how GWYNEDD has changed over two centuries. For statistics about Penrhyn Slate Quarries itself, go to Statistics.
How to reference this page:
GB Historical GIS / University of Portsmouth, History of Penrhyn Slate Quarries, in Gwynedd and Caernarvonshire | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/25772
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 "Penrhyn Slate Quarries".
