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Bwlch Seiri Camp is a prehistoric enclosure situated in Wales on bedrock of Llanvirn age, where mudstone, siltstone and sandstone form the underlying geology. The site lies within strata deposited during the Whiterock period, creating a landscape of mixed sedimentary deposits typical of upland Welsh terrain. This geological foundation has shaped the exposure and visibility of the monument across the surrounding countryside.
The enclosure comprises earthwork defences characteristic of Iron Age hillforts or earlier prehistoric settlement sites, though its precise chronology remains to be firmly established through systematic investigation. The defensive character of the site, defined by banks and ditches, suggests occupation during a period when such fortified positions served strategic or communal functions. The choice of location on sloping ground would have offered both defensive advantages and views across the surrounding landscape.
The monument is protected as a scheduled ancient monument under Cadw, the Welsh heritage organisation, recorded under reference CM179. This status reflects its significance as evidence of prehistoric settlement and land use in Wales. The earthwork remains survive sufficiently to convey the original design, offering insight into how communities in the prehistoric period adapted their immediate environment to create defended spaces.
Bwlch Seiri Camp is a scheduled monument protected by Cadw under reference CM179. View the official record →
Bwlch Seiri Camp is a prehistoric enclosure situated in Wales on bedrock of Llanvirn age, where mudstone, siltstone and sandstone form the underlying geology. It is designated a Scheduled Ancient Monument by Cadw under reference CM179.
Bwlch Seiri Camp dates from the prehistoric period, and is classified as a enclosure. It is one of over 32,000 scheduled monuments protected across the UK.
Bwlch Seiri Camp 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 CM179.
Several scheduled monuments lie within 10 km, including Yr Hen Gapel, Llanybri (4.5 km), Maen Melyn Standing Stone (4.5 km), Delacorse Uchaf Standing Stone (5.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Bwlch Seiri Camp'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.
Bwlch Seiri Camp stands on Llanvirn Rocks (Undifferentiated), bedrock that formed in the Whiterock. The rock here is mudstone, siltstone and sandstone.