Ancient Monuments

History on the Ground

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

Bryn Eryr Rectangular Earthwork

A Scheduled Monument in Cwm Cadnant, Isle of Anglesey (Ynys Môn)

« Monument Details

Monument location is shown with schedule boundary polygons where available, otherwise marked as a point on the map which approximates to the centre of the monument.


Latitude: 53.2578 / 53°15'28"N

Longitude: -4.1892 / 4°11'21"W

OS Eastings: 254059

OS Northings: 375663

OS Grid: SH540756

Mapcode National: GBR JN02.ZRQ

Mapcode Global: WH540.MCBT

Entry Name: Bryn Eryr Rectangular Earthwork

Scheduled Date:

Source: Cadw

Source ID: 3280

Cadw Legacy ID: AN100

Schedule Class: Monument

Category: Enclosure

Period: Roman

County: Isle of Anglesey (Ynys Môn)

Community: Cwm Cadnant

Traditional County: Anglesey 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.