- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°3'17"N 5°3'7"W
- Eastings/Northings: 181631, 21659
- OS Grid: SW816216
- Mapcode Local: GBR ZG.BN4W
- Mapcode Global: FRA 089V.X86
Location and coordinates are for the approximate centre of Maen Chynoweth within this administrative area.
Geographic features and populated places may cross administrative borders.