Scheduled MonumentsWalesCastell Mawr
Prehistoric · Enclosure

Castell Mawr

Carmarthenshire, Wales
Cadw SAM CM126
Period
Prehistoric
Site type
Enclosure
Broad class
Monument
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Castell Mawr is a prehistoric enclosed settlement located in Carmarthenshire, Wales, designated as a scheduled ancient monument under the reference CM126. The site comprises a substantial univallate or multivallate enclosure whose earthwork defences remain visible in the landscape, characteristic of Iron Age settlement patterns in South Wales. The monument dates to the Iron Age period, representing a significant example of the fortified or enclosed communities that occupied the region during the later prehistoric era. Its physical form and strategic location reflect the settlement hierarchy and defensive concerns of Iron Age Welsh communities, contributing to understanding of prehistoric occupation and social organization in Carmarthenshire.

Castell Mawr is a scheduled monument protected by Cadw under reference CM126. View the official record →

About this monument

Questions & answers

What is Castell Mawr?

Castell Mawr is a prehistoric enclosed settlement located in Carmarthenshire, Wales, designated as a scheduled ancient monument under the reference CM126. It is designated a Scheduled Ancient Monument by Cadw under reference CM126.

What period does Castell Mawr date from?

Castell Mawr dates from the prehistoric period, and is classified as a enclosure. 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 CM126.

What other scheduled monuments are near Castell Mawr?

Several scheduled monuments lie within 10 km, including Capel Bettws (0.9 km), Castell Bach (2.4 km), Castell Mawr Mound and Bailey Castle (2.6 km).

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