Ancient Monuments

History on the Ground

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

Maen Llwyd Standing Stone

A Scheduled Monument in Llansteffan, Carmarthenshire (Sir Gaerfyrddin)

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: 51.7965 / 51°47'47"N

Longitude: -4.3793 / 4°22'45"W

OS Eastings: 236025

OS Northings: 213548

OS Grid: SN360135

Mapcode National: GBR DC.Y2D4

Mapcode Global: VH3LV.13QN

Entry Name: Maen Llwyd Standing Stone

Scheduled Date:

Source: Cadw

Source ID: 2105

Cadw Legacy ID: CM064

Schedule Class: Religious, Ritual and Funerary

Category: Standing stone

Period: Prehistoric

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Llansteffan

Traditional County: Carmarthenshire


The monument comprises of a very large standing stone located in the middle of an enclosed field of pasture. The standing stone is located just beneath the summit of a local hill at the top of a W facing slope. It enjoys good all round views except to the E, where the summit interrupts. The River Towy estuary is visible to the S. The stone measures c. 2.15m tall, 2.4m wide and 1m thick. It is aligned E-W and leans slightly to the S. Packing stones are visible on the N and S faces, but the stone is earthfast. The stone is roughly rectangular in shape on plan and in section. It rises to a flat and square top.

The standing stone is thought to be of religious or ceremonial significance and to date to the Bronze Age (c. 2300 BC - 800 BC). This example is one of a number in the local area. The monument is likely to retain significant archaeological deposits and enhance our knowledge of prehistoric ritual practices. The scheduling has been revised as the original scheduled area was too large.

The area scheduled comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 10m in diameter.

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.