Ancient Monuments

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Garreg Lwyd Enclosure 600m south east of Crosslane Cottages

A Scheduled Monument in Pembrey and Burry Port Town (Pembre a Phorth Tywyn), Carmarthenshire (Sir Gaerfyrddin)

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Latitude: 51.6951 / 51°41'42"N

Longitude: -4.2857 / 4°17'8"W

OS Eastings: 242126

OS Northings: 202072

OS Grid: SN421020

Mapcode National: GBR GP.XCM3

Mapcode Global: VH3M8.NNQC

Entry Name: Garreg Lwyd Enclosure 600m SE of Crosslane Cottages

Scheduled Date: 8 November 1978

Source: Cadw

Source ID: 2817

Cadw Legacy ID: CM222

Schedule Class: Monument

Category: Enclosure

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Pembrey and Burry Port Town (Pembre a Phorth Tywyn)

Built-Up Area: Pembrey

Traditional County: Carmarthenshire


The monument comprises the remains of a defended promontory enclosure, which probably dates to the Iron Age period (c. 800 BC - AD 74, the Roman conquest of Wales) and which is located on a west-facing spur formed from a natural rock crag which has wide views on three sides. The enclosure is a sub-circular area of approximately 0.4ha defended to the west and north by the natural steep slopes with bare rock scarps, and to the east and south by bivallate ramparts which consist of an inner bank 1m high internally, 2-3m high externally; a ditch, and an outer bank 1-1.5m high externally. The ditches are best preserved on the east side. The entrance is probably on the southwest.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric defensive organisation and settlement. The site forms an important element within the wider later prehistoric context and within the surrounding landscape. The site is well preserved and retains considerable archaeological potential. There is a strong probability of the presence of evidence relating to chronology, building techniques and functional detail.

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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