- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°40'15"N 4°1'30"W
- Eastings/Northings: 263170, 310083
- OS Grid: SH631100
- Mapcode Local: GBR 8V.4TW7
- Mapcode Global: WH570.44L3
Location and coordinates are for the approximate centre of Cwm-Llwyd within this administrative area.
Geographic features and populated places may cross administrative borders.