Cof Cymru: National Historic Assets of Wales · Wales
Castell Caer Lleion
Conwy, Conwy, Wales
A scheduled monument in Conwy, recorded as Hillfort (Prehistoric).
The record
- Designation
- Scheduled monument
- Site type
- Hillfort
- Period
- Prehistoric
- Community
- Conwy
- Unitary authority
- Conwy
- Country
- Wales
- Coordinates (centre of the scheduled area)
- 53.28273, -3.86151
- SAM number
- CN012
- Cadw record number
- 3422
Slide toward Today to fade the historical sheet and see the modern map underneath.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesLlyfrgell Genedlaethol Cymru – The National Library of Wales
5 historical maps cover this location, the earliest the 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).
Historical maps covering this location
- 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
- 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
- 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
- 1899 · 94 Beaumaris (Hills) (David Rumsey Map Collection, Stanford Libraries)
- 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
Cadw's description
Summary description and reason for designation
The following provides a general description of the Scheduled Ancient Monument.
Hillfort on Conwy Mountain (Mynydd y Dref), also known as Castell Caer Seion or Lleion. The summit of a ridge of rhyolite is enclosed by a single rampart, with more complex works protecting a smaller fortified area at the W end.
Within the fort 58 round hut foundations are visible as levelled platforms, including 7 in the smaller enclosure.
The large enclosure also contains a rectangular levelled platform, on the N slopes 430ft NNE from the main entrance; 600ft NE from the entrance is a circular pit of about 4ft diameter with a trench leading into it from the NE - in plan resembling a corn-drying kiln. There are possible traces of others.
The detailed structural history of the site remains open to several widely different interpretations. It appears certain that the existing remains represent two or more periods of construction, during at least one of which both the enclosures were occupied together, although there is no indication of direct access from one to the other, and indeed the small enclosure seems to have been designed to resist attack from within the large enclosure as well as from outside.
The site is traditionally associated with Maelgwn, but there is no other evidence either way as to a sixth-century occupation. The main structure belongs to the pre-Roman Iron Age.
The monument is of national importance for its potential to enhance our knowledge of prehistoric settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.
The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.
Nearby in the register
- Gateway at entrance to walled garden at Pinewood TowersDomesticunder 1 mi
- Archway at entrance to garage of Pinewood TowersDomesticunder 1 mi
- Gwern Engan Concentric Enclosed Hut CircleHut Circle Settlementunder 1 mi
- Tri DyffrynDomesticunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.