Ancient Monuments

History on the Ground

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Caer Euni Camp

A Scheduled Monument in Llandderfel, Gwynedd

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Latitude: 52.9597 / 52°57'34"N

Longitude: -3.4893 / 3°29'21"W

OS Eastings: 300055

OS Northings: 341294

OS Grid: SJ000412

Mapcode National: GBR 6J.KJXH

Mapcode Global: WH66V.CVNX

Entry Name: Caer Euni Camp

Scheduled Date:

Source: Cadw

Source ID: 547

Cadw Legacy ID: ME015

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Gwynedd

Community: Llandderfel

Traditional County: Merionethshire


The monument comprises the remains of a hillfort, which probably dates to the Iron Age period (c. 800 BC - AD 74, the Roman conquest of Wales). Hillforts are usually located on hilltops and surrounded by a single or multiple earthworks of massive proportions. Hillforts must have formed symbols of power within the landscape, while their function may have had as much to do with ostentation and display as defence. Caer Eini Camp is located on a narrow ridge between the Ffrauar and Lleidiog river valleys. The size of the defences and its subsequent enlargement, suggest that the site was of some importance. The earlier phase of the hillfort measured approximately 200 meters in length, which was later increased to approximately 315 meters. This later development included the strengthening of the hillfort’s defences and the excavation of a large rock cut ditch. Aerial photographic analysis of the central area has revealed the presence 25 circular patches. The circles measure 5 to 7 meters in diameter and may indicate the presence of ploughed out hut circles or storage pits.

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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