Tomen Fawr, Llanystumdwy
Has been described as a Certain Timber Castle (Ringwork)
There are earthwork remains
| Name | Tomen Fawr, Llanystumdwy |
| Alternative Names | Dolwydln; Domen Fawr; Llanystwmdwy; Glan-llynau |
| Historic Country | Caernarfonshire |
| Modern Authority | Gwynedd |
| 1974 Authority | Gwynedd |
| Community | Llanystumdwy |
A ring motte situated on the edge of a ridge of clay drift, 400m from the sea. The interior, 12m in diameter has been partly filled in by the collapse of the bank. The N of the interior is overgrown with gorse, broom and bramble. The top of the bank is between 2 and 4 m above the interior, although this diminishes to 0.5m on the S edge, where part of the bank may have collapsed outward (see RCAHM description). The bank is 2m wide at the top. The encircling ditch is best preserved on the north and the east where it is 4m below the crest of the bank. On the north the ditch has been partly been filled in, although it is still visible. On the south the site is defended by the natural slope, although this has been dug into to create material for the bank, which resulted in the line of the ditch being continued round the monument. There are no obvious archaeological features outside the line of the ditch, although the field below the slope to the south of the site does contain a number of amorphous humps. (Gwynedd Archaeological Trust HER)
A ring motte situated on the edge of a ridge of clay drift, 400 m from the sea. The interior, 12 m in diameter, has been partly filled in by the collapse of the bank. The N part of the interior is overgrown with gorse, broom and bramble. The top of the bank is between 2 m and 4 m above the interior, although this diminishes to 0.5 m on the S edge, where part of the bank may have collapsed outward. The bank is 2 m wide at the top. The encircling ditch is best preserved on the W and E sides, where it is 4 m below the crest of the bank. On the N the ditch has been partly filled in, although it is still visible. On the S the site is defended by the natural slope, although this has been dug into to obtain material for the bank, which resulted in the line of the ditch being continued round the monument
There are no obvious archaeological features outside the line of the ditch, although the field below the slope to the S of the site does contain a number of amorphous bumps. (Scheduling Report)
This site is a scheduled monument protected by law
Not Listed
The National Monument Record (Coflein) number(s)
County Historic Environment Record
| OS Map Grid Reference | SH454376 |
| Latitude | 52.9141998291016 |
| Longitude | -4.30017995834351 |
| Eastings | 245430 |
| Northings | 337670 |
