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Cof Cymru: National Historic Assets of Wales · Wales

Pen-y-Gaer Defended Enclosure

Nantcwnlle, Ceredigion, Wales

A scheduled monument in Nantcwnlle, Ceredigion, recorded as Promontory Fort - inland (Prehistoric).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Pen-y-Gaer Defended Enclosure, Nantcwnlle, Ceredigion, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Scheduled monument
Site type
Promontory Fort - inland
Period
Prehistoric
Date of designation
14 January 2008
Community
Nantcwnlle
Unitary authority
Ceredigion
Country
Wales
Coordinates (centre of the scheduled area)
52.20479, -4.08313
SAM number
CD261
Cadw record number
1250

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

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 195 Lampeter (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)
  • 1919 · Sheet 78. Lampeter. (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 Monument.

The monument comprises a defended enclosure, which probably dates to the Iron Age period (c. 800 BC - AD 74, the Roman conquest of Wales). It is located on the summit of a SW-facing promontory overlooking the Aeron valley to the S. The enclosure is an elongated oval in shape and measures 150m NE-SW by 50m transversely. The NE side is defended by a bank that measures 2m in height externally, but lies level with the interior. A simple gap marks the location of the entrance. The SW side is defended by a bank that measures up to 2m in height externally and a shallow outer ditch. On the NW and SE sides where the ground falls away steeply there is no obvious trace of a bank.

The monument is of national importance for its potential to enhance our knowledge of later prehistoric defensive organisation. It forms an important element within the wider later prehistoric context and within the surrounding landscape. Although the site lies under improved pasture, much archaeological potential remains; both the interior and rampart may be expected to contain archaeological information concerning chronology, building techniques and functional detail.

The scheduled area comprises the remains described and an area around them within which related evidence may be expected to survive. It is an irregular polygon in shape on plan and measures 195m NE-SW by 90m transversely.

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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