- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°59'6"N 3°44'12"W
- Eastings/Northings: 283500, 344500
- OS Grid: SH835445
- Mapcode Local: GBR 66.HYKW
- Mapcode Global: WH66Q.K7SC
Location and coordinates are for the approximate centre of Marddwr within this administrative area.
Geographic features and populated places may cross administrative borders.