The comprehensive gazetteer and bibliography of the medieval castles, fortifications and palaces of England, Wales, the Islands.
The listings
Other Info
Print Page 
Next Record 
Previous Record 
Back to list 

Pen Twr Enclosure, Treflys

Also known as, or recorded in historical documents as;
Cwm Cowydd; Cefn Gardys

In the community of Treflys.
In the historic county of Brecknockshire.
Modern authority of Powys.
Preserved county of Powys.

OS Map Grid Reference: SN89605213
Latitude 52.15638° Longitude -3.61511°

Pen Twr Enclosure, Treflys has been described as a Timber Castle but is rejected as such.

There are earthwork remains.


On PEN TWR above the E.-W. ridge CEFN GARDYS, 370 m above O.D., is a circular enclosure, probably a ring-cairn, 16.0m in internal diameter, surrounded by a bank of grass-grown earth and small stones 3.1-3.9m wide at the base and 0.3-0.8m high. The interior level rises in the form of a shallow dome slightly above that of the ground outside, but this elevation may be a natural feature. There is a short length (6.5m) of counterscarp bank 2.1m wide and 0.3m high, visible externally on the W. side. Within the N.W. quadrant is a level terrace, 6.5-7.0m wide externally. The site has no ditch, entrance or internal features. The bank is being eroded by sheep. It was first described by G.T.Clark in 1873. Clark placed it above 'Cwm Cowydd' and pointed out that it lay close to an old ridge-way, formerly an extremely important drovers' road. He also believed it to have been a dwelling site, and indeed, its true function will only be ascertained by excavation (Clwyd Powys Archaeological Trust HER)

The Pen Twr Enclosure has been interpreted by some as as a ring cairn, although others have commented that it does not have the appearance of a prehistoric site. It is a circular and embanked enclosure, 16.7m in diameter internally, whose bank is 3.1m to 3.7m wide and 0.3m to 0.6m high. There is no trace of a ditch, entrance or internal features. (Coflein)

Earlier versions of the Clwyd Powys Archaeological Trust HER identified this as a ? ringwork. Location clearly not that of a medieval castle and record probably represents a poor use of the term 'ringwork' rather than a genuine thought as to medieval date.
Links to archaeological and architectural databases, mapping and other online resources

Data >
Coflein   County HER            
Maps >
Streetmap   NLS maps   Where's the path   Old-Maps      
Data/Maps > 
Magic   Historic Wales   V. O. B.   Geology   LIDAR  
Air Photos > 
Bing Maps   Google Maps   Getmapping   ZoomEarth      
Photos >
CastleFacts   Geograph   Flickr   Panoramio      

Sources of information, references and further reading
Most of the sites or buildings recorded in this web site are NOT open to the public and permission to visit a site must always be sought from the landowner or tenant.
It is an offence to disturb a Scheduled Monument without consent. It is a destruction of everyone's heritage to remove archaeological evidence from ANY site without proper recording and reporting.
Don't use metal detectors on historic sites without authorisation.
The information on this web page may be derived from information compiled by and/or copyright of the Royal Commission on the Ancient and Historic Monuments of Wales, the four welsh archaeological trusts and other individuals and organisations. It may also contain Designated Historic Asset Descriptive Information from The Welsh Historic Environment Service (Cadw), licensed under the Open Government Licence. All the sources given should be consulted to identify the original copyright holder and permission obtained from them before use of the information on this site for commercial purposes.
The author and compiler of Gatehouse does not receive any income from the site and funds it himself. The information within this site is provided freely for educational purposes only.
The bibliography owes much to various bibliographies produced by John Kenyon for the Council for British Archaeology, the Castle Studies Group and others.
Suggestions for finding online and/or hard copies of bibliographical sources can be seen at this link.
Minor archaeological investigations, such as watching brief reports, and some other 'grey' literature is most likely to be held by H.E.R.s but is often poorly referenced and is unlikely to be recorded here, or elsewhere, but some suggestions can be found here.
The possible site or monument is represented on maps as a point location. This is a guide only. It should be noted that OS grid references defines an area, not a point location. In practice this means the actual center of the site or monument may often, but not always, be to the North East of the point shown.
Locations derived from OS grid references and from latitude longitiude may differ by a small distance.
Further information on mapping and location can be seen at this link.
Lidar coverage in the UK is not complete. The button above will give an idea of the area of coverage. Higher resolution lidar images in both DSM and DTM form may be available from Lle A geo-Portal for Wales (click the preview tag to bring up a map and then select format byclicking on the small blue diamond in the top right corner of the map.)
Please help to make this as useful a resource as possible by contacting Gatehouse if you see errors, can add information or have suggestions for improvements in functality and design.
Help is acknowledged.

This record last updated before 1 February 2016