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Pen Cerrig Standing Stone is a prehistoric monolith situated in Wales and protected as a scheduled ancient monument under Cadw reference MG300. The stone stands upon bedrock of Ashgill formation rocks, a geological sequence of mudstone, siltstone and sandstone laid down during the Ashgill period of the Ordovician era, approximately 445 million years ago. This ancient substrate has weathered to create the upland landscape in which the monument now stands.
Standing stones of this type typically date to the Bronze Age, though their precise chronology remains uncertain. They may have served ceremonial, territorial or commemorative functions within prehistoric communities, and often mark significant topographical features or ancient routes. Pen Cerrig's position in the Welsh landscape suggests similar purposes, though its specific historical context remains unknown.
The monument survives as a testament to prehistoric monumentality and the enduring relationship between human societies and the land. Its protection under Cadw ensures its preservation for future study and public appreciation, maintaining its presence as a landmark within the Welsh countryside for over four thousand years.
Pen Cerrig Standing Stone is a scheduled monument protected by Cadw under reference MG300. View the official record →
Pen Cerrig Standing Stone is a prehistoric monolith situated in Wales and protected as a scheduled ancient monument under Cadw reference MG300.
Pen Cerrig Standing Stone 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.
Pen Cerrig Standing Stone 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 MG300.
Several scheduled monuments lie within 10 km, including Cedig Cairn (4.1 km), Bwlch Sych round cairn (4.7 km), Siglem Las conjoined round cairns (4.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pen Cerrig Standing Stone'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.
Pen Cerrig Standing Stone stands on Ashgill Rocks (Undifferentiated), bedrock that formed in the Ashgill. The rock here is mudstone, siltstone and sandstone.