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Cof Cymru: National Historic Assets of Wales · Wales

Castell Coch Promontory Fort

Llanrhian, Pembrokeshire, Wales

The record

Designation
Scheduled monument
Site type
Promontory Fort- coastal
Period
Prehistoric
Community
Llanrhian
Unitary authority
Pembrokeshire
Country
Wales
Coordinates (centre of the scheduled area)
51.96086, -5.14583
SAM number
PE029
Cadw record number
3336

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1608 "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument comprises the remains of a defended enclosure, which probably dates to the Iron Age period (c. 800 BC - AD 43). The enclosure is located on a narrow coastal promontory above the sea, high cliffs form apart of the defensive circuit on three sides whilst the narrowest part of the promontory is defended by an outer rock-cut ditch about 4m wide, 2m deep and 50m long, on the inner side of which are two banks of earth and stone about 1m high. The internal defended area measures about 200m east to west and 100m north to south. The location of the entrance may be a simple gap towards the south end of the defences. A single circular terrace, probably a house site has been noted in the interior.

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 scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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