Scheduled MonumentsWalesCastell Mawr
Prehistoric · Hillfort

Castell Mawr

Pembrokeshire, Wales
Cadw SAM PE172
Period
Prehistoric
Site type
Hillfort
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

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Overview

History & significance

Castell Mawr is a prehistoric hillfort located in Pembrokeshire, Wales, designated as a Scheduled Ancient Monument under the reference PE172. The site dates to the Iron Age and represents an important example of defended settlement from this period in southwest Wales. The hillfort is defined by its substantial earthwork defences, comprising a series of banks and ditches that enclosed a hilltop position, providing both physical protection and a demonstration of community organisation and labour investment. Such sites served multiple functions as centres of settlement, storage, and territorial control, reflecting the social hierarchies and defence strategies characteristic of Iron Age societies in Britain.

Castell Mawr is a scheduled monument protected by Cadw under reference PE172. View the official record →

About this monument

Questions & answers

What is Castell Mawr?

Castell Mawr is a prehistoric hillfort located in Pembrokeshire, Wales, designated as a Scheduled Ancient Monument under the reference PE172. It is designated a Scheduled Ancient Monument by Cadw under reference PE172.

What period does Castell Mawr date from?

Castell Mawr 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 Mawr?

Castell Mawr 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 PE172.

What other scheduled monuments are near Castell Mawr?

Several scheduled monuments lie within 10 km, including Cnwc Round Cairns (8.2 km), Mynydd Crwn standing stone (8.4 km), Gors Fawr Stone Circle (8.5 km).

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