Ancient Monuments

History on the Ground

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Offa's Dyke: Section North West of Tre Abbot-Fawr

A Scheduled Monument in Llanasa, Flintshire (Sir y Fflint)

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Latitude: 53.2988 / 53°17'55"N

Longitude: -3.3418 / 3°20'30"W

OS Eastings: 310673

OS Northings: 378825

OS Grid: SJ106788

Mapcode National: GBR 5Z39.95

Mapcode Global: WH76H.MBWW

Entry Name: Offa's Dyke: Section North West of Tre Abbot-Fawr

Scheduled Date:

Source: Cadw

Source ID: 3099

Cadw Legacy ID: FL123

Schedule Class: Monument

Category: Linear earthwork

Period: Early Medieval

County: Flintshire (Sir y Fflint)

Community: Llanasa

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.

Two sections of the earthwork are visible. The section to the north of the hedge (which runs along the line of the ditch) measures 100yds long. Here the bank is between 3ft and 3ft 6ins high and measures 30ft wide. The other section lies to the south of the parish boundary and measures 200ydsin length , with a low bank, 60ft wide and standing to a height of between 1ft 6ins and 4ft high.

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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