Ancient Monuments

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Penralltddu Defended Enclosure

A Scheduled Monument in Cilgerran, Pembrokeshire (Sir Benfro)

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Latitude: 52.051 / 52°3'3"N

Longitude: -4.6675 / 4°40'2"W

OS Eastings: 217191

OS Northings: 242532

OS Grid: SN171425

Mapcode National: GBR CZ.DWFW

Mapcode Global: VH2MW.1QV3

Entry Name: Penralltddu Defended Enclosure

Scheduled Date: 22 August 2008

Source: Cadw

Source ID: 955

Cadw Legacy ID: PE535

Schedule Class: Defence

Category: Promontory Fort - inland

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Cilgerran

Traditional County: Pembrokeshire


The monument, also known as Y Gaer, comprises the remains of an earthwork defended enclosure, which probably dates to the Iron Age period (c. 800 BC - AD 43). The enclosure is roughly rectangular in shape and measures 115m NE-SW by a maximum of 50m transversely. It is located on an inland promontory above steep slopes that mark the defensive circuit on the NW, SW and SE sides. A spread earthen bank defends the NE end and measures 1.2m in height and 8m in width.

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, layout, building techniques and functional detail.

The area scheduled comprises the remains described and an area around within which related evidence may be expected to survive. It is roughly rectangular in shape on plan and measures 160m NE-SW by 95m transversely.

Source: Cadw

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