- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 57°16'14"N 5°42'54"W
- Eastings/Northings: 176118, 826104
- OS Grid: NG761261
- Mapcode Local: GBR D98H.P10
- Mapcode Global: WH0B6.5JT4
Location and coordinates are for the approximate centre of Ob nam Portan within this administrative area.
Geographic features and populated places may cross administrative borders.