Ancient Monuments

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Castell Llanddeiniolen

A Scheduled Monument in Llanddeiniolen, Gwynedd

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Coordinates

Latitude: 53.1677 / 53°10'3"N

Longitude: -4.1414 / 4°8'29"W

OS Eastings: 256949

OS Northings: 365534

OS Grid: SH569655

Mapcode National: GBR 5P.4GGL

Mapcode Global: WH54F.CM4Z

Entry Name: Castell Llanddeiniolen

Scheduled Date: 25 September 1987

Source: Cadw

Source ID: 3489

Cadw Legacy ID: CN197

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Gwynedd

Community: Llanddeiniolen

Traditional County: Caernarfonshire

Description

An intriguing site which resembles a mediaeval ringwork, although perhaps prehistoric in origin.

Traces of defences are very faint, and only on the S side. Here, there is some stone at the edge of the relatively level top of the hill, and a distinct, if slight, terrace a little further down, again with some stone in the edge.

The track which runs past the east side of the site is sunken, and a retaining wall over 1 m high forms the west side. This may be the line of a ditch protecting the site on the accessible east side. The base of a more recent field wall runs round the south and west sides of the site.

The monument is of national importance for its potential to enhance our knowledge of medieval settlement and defence. 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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