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Glan Hafon Ring Cairn is a prehistoric ring cairn situated in Wales and protected by Cadw under the reference MG302. Ring cairns of this type typically date to the Bronze Age and served ritual or commemorative functions, though their exact purpose remains uncertain. They consist of a roughly circular bank of stones surrounding a central void or depression.
The monument sits upon bedrock of Caradoc Rocks—Undifferentiated strata of mudstone, siltstone and sandstone formed during the Caradocian period of the Ordovician. This underlying geology would have provided readily available stone for cairn construction, and the exposed bedrock may have shaped how the monument was positioned within its landscape. The composition of the surrounding geology is typical of upland areas in Wales, which supported Bronze Age settlement and ritual activity.
As a protected monument, Glan Hafon Ring Cairn contributes to understanding prehistoric land use and ceremonial practice in Wales. The survival of such structures, even in fragmentary form, offers insight into Bronze Age communities and their relationship with the Welsh landscape. The site's preservation allows future investigation of its construction methods and chronology.
Glan Hafon Ring Cairn is a scheduled monument protected by Cadw under reference MG302. View the official record →
Glan Hafon Ring Cairn is a prehistoric ring cairn situated in Wales and protected by Cadw under the reference MG302.
Glan Hafon Ring Cairn 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.
Glan Hafon Ring Cairn 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 MG302.
Several scheduled monuments lie within 10 km, including Carnedd Das Eithin Round Cairn (4.3 km), Bwlch Sych round cairn (6 km), Siglem Las conjoined round cairns (6.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Glan Hafon Ring Cairn'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.
Glan Hafon Ring Cairn stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.