Ancient Monuments

History on the Ground

This site is entirely user-supported. See how you can help.

Castell Henllys

A Scheduled Monument in Nevern (Nanhyfer), Pembrokeshire (Sir Benfro)

« Monument Details

Monument location is shown with schedule boundary polygons where available, otherwise marked as a point on the map which approximates to the centre of the monument.


Latitude: 52.0178 / 52°1'3"N

Longitude: -4.7454 / 4°44'43"W

OS Eastings: 211710

OS Northings: 239040

OS Grid: SN117390

Mapcode National: GBR CW.H1KS

Mapcode Global: VH2N0.PKN1

Entry Name: Castell Henllys

Scheduled Date: 5 April 1950

Source: Cadw

Source ID: 3714

Cadw Legacy ID: PE175

Schedule Class: Defence

Category: Hillfort

Period: Prehistoric

County: Pembrokeshire (Sir Benfro)

Community: Nevern (Nanhyfer)

Traditional County: Pembrokeshire is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact for any queries related to any individual ancient or schedued monument, planning permission related to scheduled monuments or the scheduling process itself. is a Good Stuff website.