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Parth-y-Gwyddwch is a prehistoric standing stone located in Wales, approximately 150 metres north of the settlement from which it takes its name. The monument stands upon bedrock of Upper Cambrian age, specifically deposits from the Tremadocian period that comprise mudstone, siltstone and sandstone. These ancient sedimentary rocks, formed in shallow marine environments over 500 million years ago, provided the stone that the prehistoric people would have quarried and shaped for this monument.
Standing stones of this type were erected during the Bronze Age and later periods across Wales and the wider British Isles, serving purposes that remain partly enigmatic but likely included territorial markers, burial monuments or sites of ritual significance. The monument's isolated position in the landscape would have rendered it a distinctive landmark visible across considerable distances.
Parth-y-Gwyddwch is protected by Cadw, the Welsh Historic Monuments service, under reference ME259. This designation ensures the preservation of the stone and its surrounding archaeological context for future study and public understanding of prehistoric Welsh settlement and belief systems.
Parth-y-Gwyddwch, Standing Stones 150m N of is a scheduled monument protected by Cadw under reference ME259. View the official record →
Parth-y-Gwyddwch is a prehistoric standing stone located in Wales, approximately 150 metres north of the settlement from which it takes its name. It is designated a Scheduled Ancient Monument by Cadw under reference ME259.
Parth-y-Gwyddwch, Standing Stones 150m N of 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.
Parth-y-Gwyddwch, Standing Stones 150m N of 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 ME259.
Several scheduled monuments lie within 10 km, including Allt Lwyd Cairn II (2.8 km), Allt Lwyd Cairn I (2.9 km), Allt Lwyd Bronze Age Ritual Complex (3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Parth-y-Gwyddwch, Standing Stones 150m N of'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.
Parth-y-Gwyddwch, Standing Stones 150m N of stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is mudstone, siltstone and sandstone.