- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 50°37'24"N 4°12'52"W
- Eastings/Northings: 243454, 82766
- OS Grid: SX434827
- Mapcode Local: GBR NS.B394
- Mapcode Global: FRA 271F.CWQ
Location and coordinates are for the approximate centre of Marystow within this administrative area.
Geographic features and populated places may cross administrative borders.