- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°44'7"N 3°2'34"W
- Eastings/Northings: 328084, 204580
- OS Grid: SO280045
- Mapcode Local: GBR J3.1Z70
- Mapcode Global: VH79L.6NQ2
Location and coordinates are for the approximate centre of Cwm Lasgarn within this administrative area.
Geographic features and populated places may cross administrative borders.