- Category: Water Feature
- Type: Island
- Latitude/Longitude: 60°30'16"N 1°34'38"W
- Eastings/Northings: 423323, 1180190
- OS Grid: HU233801
- Mapcode Local: GBR Q0GZ.81T
- Mapcode Global: XHD1G.V7D8
Location and coordinates are for the approximate centre of Houlma within this administrative area.
Geographic features and populated places may cross administrative borders.