Ancient Monuments

History on the Ground

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Tomen y Castell

A Scheduled Monument in Dolwyddelan, Conwy

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Latitude: 53.0515 / 53°3'5"N

Longitude: -3.904 / 3°54'14"W

OS Eastings: 272473

OS Northings: 352166

OS Grid: SH724521

Mapcode National: GBR 60.CS56

Mapcode Global: WH554.0K7H

Entry Name: Tomen y Castell

Scheduled Date: 22 August 1988

Source: Cadw

Source ID: 3410

Cadw Legacy ID: CN196

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Conwy

Community: Dolwyddelan

Traditional County: Caernarfonshire


The monument comprises a prominent natural rock outcrop, naturally defended on the N, S and E by a very steep rocky precipice. On the W the slope is slightly more gradual, but still very steep.

The natural defences are complemented on the W and NW by a ditch, now very silted but clearly recognisable, especially on the W. The top of the mound is somewhat uneven and on the summit are traces of a rectangular structure, perhaps 6m x 6.7m. The foundations are most clearly seen on the E side.

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 structure itself 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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