Ancient Monuments

History on the Ground

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Dolbenmaen Castle Mound

A Scheduled Monument in Dolbenmaen, Gwynedd

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Latitude: 52.9641 / 52°57'50"N

Longitude: -4.2251 / 4°13'30"W

OS Eastings: 250652

OS Northings: 343069

OS Grid: SH506430

Mapcode National: GBR 5L.K63W

Mapcode Global: WH55C.2RBH

Entry Name: Dolbenmaen Castle Mound

Scheduled Date:

Source: Cadw

Source ID: 564

Cadw Legacy ID: CN063

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Gwynedd

Community: Dolbenmaen

Traditional County: Caernarfonshire


A motte built by the side of the Afon Dwyfor, part of which has been destroyed by the farmhouse and buildings which lie on the W side. It stands about 6 m high and is 36 m in diameter at the base. The top measures 8 m N - S and 11 m W - E. A masonry wall 0.75 - 1 m high encircles the top. The area inside this wall has been damaged by trees which have grown and subsequently fallen, creating large holes. The same thing has happened on the sides of the motte. The ditch, visible on the S and W sides, is between 0.75 and 1 m deep, and about 7 m wide.

The monument is of national importance for its potential to enhance our knowledge of medieval 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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