Ancient Monuments

History on the Ground

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Round Cairn West of Gyrn Ddu

A Scheduled Monument in Llanaelhaearn, Gwynedd

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Latitude: 52.9928 / 52°59'33"N

Longitude: -4.3906 / 4°23'26"W

OS Eastings: 239644

OS Northings: 346610

OS Grid: SH396466

Mapcode National: GBR 5C.HFY3

Mapcode Global: WH444.J1GH

Entry Name: Round Cairn West of Gyrn Ddu

Scheduled Date:

Source: Cadw

Source ID: 3178

Cadw Legacy ID: CN110

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Gwynedd

Community: Llanaelhaearn

Traditional County: Caernarfonshire


The cairn is built out of the surrounding scree and measures about 1m high on the up slope side to the north east and 1.5m high from down slope to the south west. It is at least 10m in diameter with a very slight hollow in the top, otherwise appearing largely undisturbed

The monument is of national importance for its potential to enhance our knowledge of Prehistoric ritual and funerary rites. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

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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