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Llyn Eiddew Bach Ring Cairn I is a prehistoric ring cairn situated in Wales on bedrock of Middle Cambrian age, comprising mudstone, siltstone and sandstone that provided the stone-working communities of antiquity with raw material for construction. The monument is protected by Cadw, the historic monuments service of Wales, under the reference ME209.
Ring cairns represent a distinctive form of prehistoric funerary or ceremonial architecture, typically dating to the Bronze Age, consisting of a circular or near-circular arrangement of stones with an open or lightly-filled interior. These monuments served ritual and commemorative functions within early metalworking societies. At Llyn Eiddew Bach, the local geology of the Middle Cambrian period would have afforded access to workable stone suitable for cairn construction, though such stone resources were commonly employed for multiple purposes within prehistoric settlement landscapes.
The cairn's preservation and legal protection reflect its archaeological significance as evidence of Bronze Age burial practice and territorial occupation in Wales. Such monuments contribute substantially to understanding the distribution of prehistoric communities across the Welsh uplands and their relationship to the natural landscape, geology and available resources of their region.
Llyn Eiddew Bach Ring Cairn I is a scheduled monument protected by Cadw under reference ME209. View the official record →
Llyn Eiddew Bach Ring Cairn I is a prehistoric ring cairn situated in Wales on bedrock of Middle Cambrian age, comprising mudstone, siltstone and sandstone that provided the stone-working communities of antiquity with raw material for construction. It is designated a Scheduled Ancient Monument by Cadw under reference ME209.
Llyn Eiddew Bach Ring Cairn I dates from the prehistoric period, and is classified as a ring cairn. It is one of over 32,000 scheduled monuments protected across the UK.
Llyn Eiddew Bach Ring Cairn I is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is ME209.
Several scheduled monuments lie within 10 km, including Hut Circle South of Tyddyn-Du (7.5 km), Tyddyn Du Enclosed Settlement (7.6 km), Hut Circle Settlement at Crawcwellt South (7.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Llyn Eiddew Bach Ring Cairn I's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Llyn Eiddew Bach Ring Cairn I stands on Middle Cambrian, bedrock that formed in the Middle Cambrian. The rock here is mudstone, siltstone and sandstone.