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Tre'r Ceiri

Tre'r Ceiri is an Iron Age hillfort on the eastern summit of Yr Eifl on the Llŷn peninsula in north-west Wales. Its stone rampart encloses the remains of about 150 stone huts, many still standing to shoulder height. It was occupied before the Roman conquest and through the Roman period, and is one of the best-preserved hillforts in Britain.

Tre'r Ceiri
Image: Llywelyn2000 · CC BY-SA 4.0 · Wikimedia Commons

Mentioned in 1 state history

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Cite this entry
APA
The Epoch Institute. (2026). Tre'r Ceiri. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/trer-ceiri
MLA
“Tre'r Ceiri.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/trer-ceiri. Accessed .
Chicago
The Epoch Institute. “Tre'r Ceiri.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/trer-ceiri.
Harvard
The Epoch Institute (2026) ‘Tre'r Ceiri’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/trer-ceiri (Accessed: ).

Last reviewed October 2026Random entry ↻