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 enclosure located in Carmarthenshire, Wales, and is scheduled as an ancient monument under Cadw reference SAM CM126. The site comprises a substantial univallate or multivallate earthwork characteristic of Iron Age hillforts or earlier Bronze Age defended settlements, though the precise dating remains subject to archaeological interpretation. The monument's physical remains consist of defensive banks and ditches which would have served to enclose and protect a settlement area, reflecting the organised territorial control and settlement patterns of prehistoric communities in the region. The site represents an important example of prehistoric settlement archaeology in Carmarthenshire and contributes to understanding the evolution of defended settlement types across Wales during the later prehistoric period.

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 enclosure located in Carmarthenshire, Wales, and is scheduled as an ancient monument under Cadw reference SAM 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 the UK.

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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