Ancient Monuments

History on the Ground

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Mynwent y Llwyn

A Scheduled Monument in Llanfihangel Ysgeifiog, Isle of Anglesey (Ynys Môn)

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Latitude: 53.2325 / 53°13'56"N

Longitude: -4.31 / 4°18'35"W

OS Eastings: 245913

OS Northings: 373094

OS Grid: SH459730

Mapcode National: GBR 5G.09J8

Mapcode Global: WH430.R0TR

Entry Name: Mynwent y Llwyn

Scheduled Date:

Source: Cadw

Source ID: 525

Cadw Legacy ID: AN065

Schedule Class: Unassigned

Category: Mound

Period: Prehistoric

County: Isle of Anglesey (Ynys Môn)

Community: Llanfihangel Ysgeifiog

Built-Up Area: Pentre Berw


The site consists of a substantial, flat-topped oval mound measuring 55m by 48m, oriented NW-SE, which lies amongst river marshes. It is up to 2.5m in height and approximately 60m in diameter. A chapel may formerly have stood upon the mound and there may have been a ditch around its base. It may date to the early medieval period, or have a prehistoric origin.

The monument is of national importance for its potential to enhance our knowledge of ritual and burial practices. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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