Ancient Monuments

History on the Ground

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Y Gaerwen Enclosure, Llangar

A Scheduled Monument in Llandderfel, Gwynedd

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Latitude: 52.9547 / 52°57'16"N

Longitude: -3.4498 / 3°26'59"W

OS Eastings: 302701

OS Northings: 340684

OS Grid: SJ027406

Mapcode National: GBR 6L.KVY2

Mapcode Global: WH66V.ZZFR

Entry Name: Y Gaerwen Enclosure, Llangar

Scheduled Date:

Source: Cadw

Source ID: 539

Cadw Legacy ID: ME091

Schedule Class: Monument

Category: Enclosure

Period: Prehistoric

County: Gwynedd

Community: Llandderfel

Traditional County: Merionethshire


The monument comprises the remains of an earthwork/stone-built enclosure of about 5 acres, defined by a stone bank and scarps. The date or precise nature of the enclosure is unknown, but it is likely to be later prehistoric or medieval. The enclosure may continue beyond the field wall to the NE.

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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