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Mynydd Myddfai Standing Stones is a prehistoric standing stone located in Wales and protected by Cadw under reference CM041. The monument stands on bedrock of Pridoli age, comprising undifferentiated mudstone, siltstone and sandstone laid down in the Pridoli period. These fine-grained sedimentary rocks, exposed across the upland landscape, provided the geological context in which this stone was erected by prehistoric communities.
The standing stone belongs to a tradition of monumental stone-working that flourished across Britain during the Neolithic and Bronze Age periods. Such stones, whether erected singly or in alignments and circles, served various ritual, territorial or commemorative functions within prehistoric societies. Their positioning often reflects careful consideration of the local landscape and visibility across the surrounding terrain.
The monument survives as evidence of prehistoric activity in this Welsh upland region. Its preservation under statutory protection recognises its significance as a component of the archaeological heritage. The Pridoli bedrock beneath the site, with its susceptibility to weathering and its variable geology, would have shaped both the practical challenges of erecting the stone and the visual impression it created within the surrounding moorland landscape.
Mynydd Myddfai Standing Stones is a scheduled monument protected by Cadw under reference CM041. View the official record →
Mynydd Myddfai Standing Stones is a prehistoric standing stone located in Wales and protected by Cadw under reference CM041.
Mynydd Myddfai Standing Stones dates from the prehistoric period, and is classified as a standing stone. It is one of over 32,000 scheduled monuments protected across the UK.
Mynydd Myddfai Standing Stones 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 CM041.
Several scheduled monuments lie within 10 km, including Picws Du cairn (6.5 km), Two Cairns on Fan Foel (6.6 km), Carn y Gigfran (7.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Mynydd Myddfai Standing Stones'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.
Mynydd Myddfai Standing Stones stands on Pridoli Rocks (Undifferentiated), bedrock that formed in the Pridoli. The rock here is mudstone, siltstone and sandstone.