Scheduled MonumentsWalesCastell Caer Lleion
Prehistoric · Hillfort

Castell Caer Lleion

Conwy, Wales
Cadw SAM CN012
Period
Prehistoric
Site type
Hillfort
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Castell Caer Lleion is a prehistoric hillfort located in Conwy, North Wales, designated as a Scheduled Ancient Monument under the reference CN012. The site occupies a prominent hilltop position and represents an important example of Iron Age defensive settlement in the region, though occupation may have extended into earlier periods. The fort is defined by substantial earthwork defences comprising banks and ditches that enclose the summit, a characteristic feature of Welsh hillforts constructed to control territory and protect communities during the later prehistoric period. Its strategic location reflects the settlement patterns and defensive requirements of Iron Age communities in North Wales.

Castell Caer Lleion is a scheduled monument protected by Cadw under reference CN012. View the official record →

About this monument

Questions & answers

What is Castell Caer Lleion?

Castell Caer Lleion is a prehistoric hillfort located in Conwy, North Wales, designated as a Scheduled Ancient Monument under the reference CN012. It is designated a Scheduled Ancient Monument by Cadw under reference CN012.

What period does Castell Caer Lleion date from?

Castell Caer Lleion 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 Castell Caer Lleion?

Castell Caer Lleion 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 CN012.

What other scheduled monuments are near Castell Caer Lleion?

Several scheduled monuments lie within 10 km, including Ffrith Llwynhwfa Burial Cairn (5.9 km), Early Fields and Dwellings near Maen-y-Bardd (6.3 km), Bryn Castell (6.4 km).

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