- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°45'6"N 3°58'27"W
- Eastings/Northings: 266850, 318960
- OS Grid: SH668189
- Mapcode Local: GBR 5X.ZM2W
- Mapcode Global: WH56M.X3N7
Location and coordinates are for the approximate centre of Bontddu Glen within this administrative area.
Geographic features and populated places may cross administrative borders.