- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 53°3'1"N 4°4'11"W
- Eastings/Northings: 261349, 352335
- OS Grid: SH613523
- Mapcode Local: GBR 5S.CV4B
- Mapcode Global: WH551.GL5F
Location and coordinates are for the approximate centre of Cwm Llan within this administrative area.
Geographic features and populated places may cross administrative borders.