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Caer y Tŵr is a Roman tower situated in Wales, protected as an ancient monument by Cadw under reference AN019. The tower occupies ground underlain by Upper Cambrian metasedimentary rock of Tremadocian age, geological strata that shape the landscape of this Welsh location and would have presented specific building challenges to Roman military engineers.
As a Roman military structure, Caer y Tŵr belongs to the tradition of auxiliary fortifications and signal towers that formed the infrastructure of Roman Britain's frontier and communication networks. Such towers served principally as observation posts and relay points for long-distance signalling, typically constructed from local materials available at hand.
The tower's preservation under Cadw's statutory protection reflects its significance as evidence of Roman military presence and engineering in Wales. The site's survival allows study of Roman construction techniques adapted to local geology and topography, and contributes to understanding the Roman military occupation of this region and the strategic purposes such structures served during the Roman period.
Caer y Tŵr is a scheduled monument protected by Cadw under reference AN019. View the official record →
Caer y Tŵr is a Roman tower situated in Wales, protected as an ancient monument by Cadw under reference AN019.
Caer y Tŵr dates from the roman period, and is classified as a tower. It is one of over 32,000 scheduled monuments protected across the UK.
Caer y Tŵr 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 AN019.
Several scheduled monuments lie within 10 km, including Gogarth Bay round cairn (0.5 km), Holyhead Mountain Prehistoric Village (1 km), Penrhosfeilw Standing Stones (2.1 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Caer y Tŵr'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.
Caer y Tŵr stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is metasedimentary rock.