- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°37'59"N 3°5'10"W
- Eastings/Northings: 326590, 304499
- OS Grid: SJ265044
- Mapcode Local: GBR B2.74WC
- Mapcode Global: WH79X.K2MK
Location and coordinates are for the approximate centre of Trelystan Dingle within this administrative area.
Geographic features and populated places may cross administrative borders.