Ancient Monuments

History on the Ground

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Maerdy Gaer

A Scheduled Monument in Llangrannog, Ceredigion

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Latitude: 52.1494 / 52°8'57"N

Longitude: -4.4072 / 4°24'26"W

OS Eastings: 235395

OS Northings: 252855

OS Grid: SN353528

Mapcode National: GBR DB.6MH3

Mapcode Global: VH3K2.K7FM

Entry Name: Maerdy Gaer

Scheduled Date: 15 September 1949

Source: Cadw

Source ID: 1870

Cadw Legacy ID: CD090

Schedule Class: Monument

Category: Enclosure

Period: Prehistoric

County: Ceredigion

Community: Llangrannog

Traditional County: Cardiganshire


The monument comprises the remains of an earthwork enclosure. The date or precise nature of the enclosure is unknown, but it is likely to be later prehistoric or medieval. Maerdy Gaer, also known as Castell Crugiau, sits immediately below the summit of an isolated east-west ridge. It is sub-rectangular, measuring c.56m east-west by 48m, and is bisected by a modern field boundary running east-west. The banks have been spread by ploughing and stand only c.0.6m high, apart from in the south-east corner, where the bank is c.1.2m high externally and 0.8m high internally..

The monument is of national importance for its potential to enhance our knowledge of later prehistoric defensive organisation and settlement. The site forms an important element within the wider later prehistoric context and within the surrounding landscape. The site is well preserved and retains considerable archaeological potential. There is a strong probability of the presence of evidence relating to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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