Scheduled MonumentsWalesY Werthyr Hillfort
Prehistoric · Hillfort

Y Werthyr Hillfort

Anglesey, Wales
Cadw SAM AN158
Period
Prehistoric
Site type
Hillfort
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Y Werthyr Hillfort is a prehistoric defensive enclosure located on the island of Anglesey in Wales. The site comprises a substantial earthwork featuring a single rampart with an external ditch, characteristic of Iron Age hillforts in Wales, and is likely to date from the later prehistoric period. Its strategic position would have commanded views across the surrounding landscape, suggesting a role in territorial control and settlement defence during the Iron Age. The monument remains an important example of prehistoric fortification practices in North Wales and is protected as a scheduled ancient monument under the Welsh heritage designation system.

Y Werthyr Hillfort is a scheduled monument protected by Cadw under reference AN158. View the official record →

About this monument

Questions & answers

What is Y Werthyr Hillfort?

Y Werthyr Hillfort is a prehistoric defensive enclosure located on the island of Anglesey in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference AN158.

What period does Y Werthyr Hillfort date from?

Y Werthyr Hillfort dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Y Werthyr Hillfort?

Y Werthyr Hillfort 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 AN158.

What other scheduled monuments are near Y Werthyr Hillfort?

Several scheduled monuments lie within 10 km, including Bedd Branwen Round Cairn (0.7 km), Cors-y-Bol Round Barrow (1.2 km), Glan-Alaw Standing Stone (1.5 km).

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