Ancient Monuments

History on the Ground

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

Cefn Llanerchi Standing Stones

A Scheduled Monument in Rhayader (Rhaeadr Gwy), Powys

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: 52.2587 / 52°15'31"N

Longitude: -3.6154 / 3°36'55"W

OS Eastings: 289840

OS Northings: 263510

OS Grid: SN898635

Mapcode National: GBR 9D.ZSLD

Mapcode Global: VH5CV.9H1B

Entry Name: Cefn Llanerchi Standing Stones

Scheduled Date: 31 October 2002

Source: Cadw

Source ID: 3921

Cadw Legacy ID: RD198

Schedule Class: Religious, Ritual and Funerary

Category: Stone alignment

Period: Prehistoric

County: Powys

Community: Rhayader (Rhaeadr Gwy)

Traditional County: Radnorshire


The monument comprises the remains of a stone alignment, probably dating to the Bronze Age (c.2300 BC - 800 BC). There are two stones which once stood upright and are associated with the Rhos y Gelynnen stone row and ring cairn to the south-east. The northern stone (I) is some 0.6m by 0.3m at the base and is 2.3m long, tapering to a wedge at the apex. Stone II, which has fallen and lies partly buried, is some 3.70m long and 0.5m wide.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. It is an important relic of a prehistoric funerary and ritual landscape and retain significant archaeological potential, with a strong probability of the presence of both intact burial and ritual deposits and environmental and structural evidence. Stone alignments are often part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive. It is a rectangle and measures 8m x 6m, aligned N-S.

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.