Ancient Monuments

History on the Ground

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Dyke 315m east of Tyla-Glas

A Scheduled Monument in Bedlinog, Merthyr Tydfil (Merthyr Tudful)

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Latitude: 51.7032 / 51°42'11"N

Longitude: -3.2877 / 3°17'15"W

OS Eastings: 311111

OS Northings: 201284

OS Grid: SO111012

Mapcode National: GBR HS.3XC1

Mapcode Global: VH6D5.YGS4

Entry Name: Dyke 315m E of Tyla-Glas

Scheduled Date: 3 February 1959

Source: Cadw

Source ID: 2887

Cadw Legacy ID: GM260

Schedule Class: Defence

Category: Ditch

Period: Prehistoric

County: Merthyr Tydfil (Merthyr Tudful)

Community: Bedlinog

Traditional County: Glamorgan


The monument consists of the remains of a dyke, a defensive boundary or earthwork, dating to the later prehistoric/medieval period.

The bank and ditch are clearly defined, running east-west across the ridge top. The ditch is 3m wide, 1.5m deep at the east end and not as deep towards the west end. The bank is 0.5-0.75m high, with a 4m wide gap in the middle and a 3m gap incorporating a trackway at its west end.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric/medieval defensive organisation and settlement. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. A dyke 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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