Ancient Monuments

History on the Ground

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Afon Arthog cup-marked rock

A Scheduled Monument in Arthog, Gwynedd

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Latitude: 52.7002 / 52°42'0"N

Longitude: -3.9809 / 3°58'51"W

OS Eastings: 266241

OS Northings: 313233

OS Grid: SH662132

Mapcode National: GBR 8X.2SKT

Mapcode Global: WH56T.TDJ9

Entry Name: Afon Arthog cup-marked rock

Scheduled Date: 28 April 2003

Source: Cadw

Source ID: 3999

Cadw Legacy ID: ME235

Schedule Class: Religious, Ritual and Funerary

Category: Cup-marked stone

Period: Prehistoric

County: Gwynedd

Community: Arthog

Traditional County: Merionethshire


The monument comprises a standing stone, probably dating to the Bronze Age (c.2300 BC - 800 BC). It is a large, flat rounded stone, standing 1.25m in height and measuring 1.5m in thickness and 0.4m in width. The stone is orientated from NNE to SSW, with the larger sides facing ESE and WNW respectively. It is situated in rough grazing on a gentle S-facing slope and is not in a prominent position in the landscape.

The monument is of national importance for its potential to enhance our knowledge of prehistoric ritual practices. The monument retains significant archaeological potential with a strong probability of associated archaeological features and deposits and forms an important element in the wider prehistoric funerary and ritual landscape.

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

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