450 metres above the wild Irish Sea, on the exposed peak of Yr Eifl, clinging to the northwestern edge of the Llŷn Peninsula stands the vast, ancient ruin of Tre& #39;r Ceiri ("Town of Giants") - one of the best-preserved hillforts in the world.

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Surrounded by a massive 3.5m (11ft) tall stone wall, Tre& #39;r Ceiri& #39;s round houses, gateways and ramparts are in remarkable condition.

The mountain was a highly strategic vantage point for a succession of peoples, from the Bronze Age through to Roman occupation.
Tre& #39;r Ceiri sits on a steeply-sloping site, its summit occupied by a large early Bronze Age burial cairn - quite clearly preserved, and well-respected by those who later built the wider hillfort.
Small oval, terraced enclosures surround the fort, and were likely used as livestock enclosures and vegetable plots.

A spring immediately outside the fort provided a water supply for people and animals.
The Iron Age fort may have housed some 100 people living in 20 houses, whereas during Roman occupation (50-400AD), the fort became a small town, with as many as 400 inhabitants.

Discoveries include pottery, iron tools, glass beads and highly decorated jewellery.
Find out more about one of Wales& #39; finest prehistoric citadels https://abs.twimg.com/emoji/v2/... draggable="false" alt="👉" title="Rückhand Zeigefinger nach rechts" aria-label="Emoji: Rückhand Zeigefinger nach rechts">

https://abs.twimg.com/emoji/v2/... draggable="false" alt="⛰" title="Berg" aria-label="Emoji: Berg"> https://museum.wales/iron_age_teachers/hillforts/tre_ceiri/
https://museum.wales/iron_age_... class="Emoji" style="height:16px;" src=" https://abs.twimg.com/emoji/v2/... draggable="false" alt="🏞" title="Nationalpark" aria-label="Emoji: Nationalpark"> https://www.megalithic.co.uk/article.php?sid=5941
https://www.megalithic.co.uk/article.p... class="Emoji" style="height:16px;" src=" https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌬" title="Wind blasendes Gesicht" aria-label="Emoji: Wind blasendes Gesicht"> https://coflein.gov.uk/en/site/95292/details/trer-ceiri-hillfort-llanaelhaearn
https://coflein.gov.uk/en/site/9... class="Emoji" style="height:16px;" src=" https://abs.twimg.com/emoji/v2/... draggable="false" alt="⛈" title="Gewitter-Wolke und Regen" aria-label="Emoji: Gewitter-Wolke und Regen"> https://www.visitsnowdonia.info/history 
https://www.visitsnowdonia.info/history&q... class="Emoji" style="height:16px;" src=" https://abs.twimg.com/emoji/v2/... draggable="false" alt="⚔️" title="Gekreuzte Schwerter" aria-label="Emoji: Gekreuzte Schwerter"> http://www.heneb.co.uk/cadwprojs/cadwreview2012-13/trerceiripublications12-13.html">https://www.heneb.co.uk/cadwprojs...
This thread is just one of a growing collection of threads about the secret wonders of Wales.

Find them all here https://abs.twimg.com/emoji/v2/... draggable="false" alt="👉" title="Rückhand Zeigefinger nach rechts" aria-label="Emoji: Rückhand Zeigefinger nach rechts"> https://twitter.com/i/events/1271423644108034050">https://twitter.com/i/events/...
Look! Lynne went to visit Tre’r Ceiri!

(scroll back up to read the amazing story of this treasure of humanity - an ancient hillfort high above the wild Irish Sea) https://twitter.com/Teeny_peeps/status/1298700392432271361">https://twitter.com/Teeny_pee...
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