Ancient Monuments

History on the Ground

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

Half Moon Camp

A Scheduled Monument in Margam, Neath Port Talbot (Castell-nedd Port Talbot)

We don't have any photos of this monument yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »

If Google Street View is available, the image is from the best available vantage point looking, if possible, towards the location of the monument. Where it is not available, the satellite view is shown instead.


Latitude: 51.5667 / 51°33'59"N

Longitude: -3.7332 / 3°43'59"W

OS Eastings: 279965

OS Northings: 186732

OS Grid: SS799867

Mapcode National: GBR H5.DKPL

Mapcode Global: VH5H2.7WRC

Entry Name: Half Moon Camp

Scheduled Date: 8 December 1994

Source: Cadw

Source ID: 2298

Cadw Legacy ID: GM477

Schedule Class: Monument

Category: Enclosure

Period: Prehistoric

County: Neath Port Talbot (Castell-nedd Port Talbot)

Community: Margam

Traditional County: Glamorgan


The monument consists of the remains of an earthwork enclosure probable dating to the Iron Age (c. 800BC - AD74). It is situated at 150m above OD on the southern edge of a spur overlooking Margam Abbey. Oval on plan, the single rampart encloses an area approximately 0.2 of a hectare. The rampart is and is enclosed by a single is best preserved on the north-east, where it is about 9m wide and 1m high. On the south, this has been reduced to a scarp set above a steep natural slope, and the line of defences on this side may have been obscured by slippage. On the west the rampart survives on a similar scale to the north-east section. On the north, the defences are crossed and largely obscured by a modern wall and field bank.

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, 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.

Source: Cadw

Other nearby scheduled monuments 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.