Ancient Monuments

History on the Ground

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Wat's Dyke: Section from Coed Llys to Chester-Holywell Road

A Scheduled Monument in Halkyn (Helygain), Flintshire (Sir y Fflint)

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Latitude: 53.2154 / 53°12'55"N

Longitude: -3.1511 / 3°9'3"W

OS Eastings: 323232

OS Northings: 369327

OS Grid: SJ232693

Mapcode National: GBR 6Z.1H2F

Mapcode Global: WH76Z.KFQT

Entry Name: Wat's Dyke: Section from Coed Llys to Chester-Holywell Road

Scheduled Date: 18 August 1949

Source: Cadw

Source ID: 2838

Cadw Legacy ID: FL082

Schedule Class: Monument

Category: Linear earthwork

Period: Early Medieval

County: Flintshire (Sir y Fflint)

Community: Halkyn (Helygain)

Traditional County: Flintshire


The monument consists of a linear earthwork, a substantial bank and ditch forming a major boundary between two adjacent landholdings, and of presumed AD 8th century date. The earthwork is a low rounded bank, with a ditch along the west side. It follows the junction of the plateau and valley slopes, fading out when this is exceptionally steep.

The monument is of national importance for its potential to enhance our knowledge of early medieval defensive organisation and settlement. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. A linear earthwork may be part of a larger cluster of monuments and their importance can further enhanced by their group value.

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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