Beili Helyg Motte
Has been described as a Questionable Timber Castle (Motte)
There are earthwork remains
| Name | Beili Helyg Motte |
| Alternative Names | Crwcws Castle |
| Historic Country | Brecknockshire |
| Modern Authority | Powys |
| 1974 Authority | Powys |
| Community | Brecon |
Earthworks, undescribed, said to lie just west of Beili Helig farm on the south side of Llanfaes and to be the possible site of 'Crwcws Castle' (Parry). Uninvestigated earthwork, possibly a motte (Marvell and Locock). (Clwyd Powys Archaeological Trust HER)
Not scheduled
Not Listed
County Historic Environment Record
| OS Map Grid Reference | SO038272 |
| Latitude | 51.9354209899902 |
| Longitude | -3.40041995048523 |
| Eastings | 303880 |
| Northings | 227260 |