Ancient Monuments

History on the Ground

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

Cae Du platform cairn

A Scheduled Monument in Dolgarrog, Conwy

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: 53.178 / 53°10'40"N

Longitude: -3.8687 / 3°52'7"W

OS Eastings: 275204

OS Northings: 366169

OS Grid: SH752661

Mapcode National: GBR 61.3W59

Mapcode Global: WH54K.JDZ1

Entry Name: Cae Du platform cairn

Scheduled Date: 7 January 2004

Source: Cadw

Source ID: 4079

Cadw Legacy ID: CN365

Schedule Class: Religious, Ritual and Funerary

Category: Platform Cairn

Period: Prehistoric

County: Conwy

Community: Dolgarrog

Built-Up Area: Dolgarrog

Traditional County: Caernarfonshire


The monument comprises the remains of an exceptionally interesting burial cairn, probably dating to the Bronze Age (c.2300 BC - 800 BC) and situated in a prominent position on a terrace on the NE-facing slopes of Moel Eilio and overlooking the Afon Porth-Llwyd valley. The grass-covered platform cairn is circular on plan and measures about 13m in diameter and up to about 1.2m in height, over a slight ring bank following the rim of the platform and a partial stone circle offset from the centre. The stone circle may well have been added later - while it closely follows the line of the ring bank on the NE arc, there is a gap of up to 1.2m in width between the line of the circle and the line of the ring bank on the S arc. At least ten orthostats are visible, several being of considerable length (up to 1.8m) but none being more than 0.5m in height. The cairn has partially collapsed or has been disturbed in the past, with visible slumping on the NE arc. It boasts fantastic views of the Afon Porth-Llwyd valley below and the Conwy valley to the NE.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual. The monument is an important relic of a prehistoric funerary and ritual landscape and retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits and environmental and structural evidence. Such evidence could include a buried prehistoric land surface, structural phasing (perhaps detailing different periods of use) and associated pollen paleo-environmental evidence from the adjacent boggy areas.

The scheduled area comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 45m 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.