- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 56°25'18"N 4°41'36"W
- Eastings/Northings: 233960, 728762
- OS Grid: NN339287
- Mapcode Local: GBR GCSR.2T1
- Mapcode Global: WH2K0.WV4B
Location and coordinates are for the approximate centre of Lochan nan Arm within this administrative area.
Geographic features and populated places may cross administrative borders.