- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°7'57"N 4°4'17"W
- Eastings/Northings: 261500, 361500
- OS Grid: SH615615
- Mapcode Local: GBR 5S.6MDJ
- Mapcode Global: WH54N.FJCB
Location and coordinates are for the approximate centre of Marchlyn Mawr Resr within this administrative area.
Geographic features and populated places may cross administrative borders.