Qualla: Tre'r Ceiri

Tre'r Ceiri: Introduction

Sun, 24 May 2026 00:00:00 GMT

Photo credit Public domain. Cewri is the plural of cawr -- the Welsh word for giant -- and the people who came later, finding 150 stone houses ringed by walls four metres tall on a mountain summit 485 metres above the sea, decided no ordinary builders had done this work. Tre'r Ceiri, the Town of the Giants, sits on the southeastern peak of Yr Eifl on the north coast of the Llyn Peninsula. It was built around 200 BC, and most of what archaeologists have found there dates from AD 150 to 400 -- meaning the Iron Age fortress kept living through the Roman occupation of Britain, even as Roman power crept up the coast below.

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Image: Public domain

Tre'r Ceiri: The Builders Who Vanished

Sun, 24 May 2026 00:00:00 GMT

Photo credit Ijanderson977, Public domain. Nobody knows who they were, exactly. The Iron Age people of north Wales left no written record of themselves -- only this extraordinary settlement and a few others scattered across the hills of Gwynedd. What they left at Tre'r Ceiri tells a clear story even without names. They pi...

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Image: Ijanderson977 | Public domain

Tre'r Ceiri: Living Alongside Rome

Sun, 24 May 2026 00:00:00 GMT

Photo credit Nilfanion, CC BY-SA 4.0. The Romans arrived in Wales in the AD 70s, building their fortress at Segontium near modern Caernarfon and another, much later, at Caer Gybi on Holyhead. They did not depopulate Tre'r Ceiri. The finds inside the walls -- pottery, brooches, fragments of Roman trade goods -- show p...

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Image: Nilfanion | CC BY-SA 4.0

Tre'r Ceiri: The View from the Wall

Sun, 24 May 2026 00:00:00 GMT

Photo credit Ellievking1, CC BY-SA 4.0. Stand on the summit today and you understand the choice of site immediately. To the south stretches the curve of Cardigan Bay, all the way to the Pembrokeshire coast on clear days. North across the water lies Anglesey, the great sacred island the Romans burned in AD 60 to break t...

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Image: Ellievking1 | CC BY-SA 4.0

Tre'r Ceiri: What Pennant Found

Sun, 24 May 2026 00:00:00 GMT

Photo credit Llywelyn2000, CC BY-SA 4.0. Tre'r Ceiri sat in obscurity for most of its post-Roman afterlife, known to local shepherds and forgotten by everyone else. Then Thomas Pennant, the Welsh naturalist and travel writer, climbed up in the late eighteenth century while preparing his Tours of Wales. He recognized wha...

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Image: Llywelyn2000 | CC BY-SA 4.0