Beinn na Gucaig is a Graham of 616 m in Highland. Its drop of 451 m is 73% of its height: the col linking it to higher ground is only 165 m above sea level.
All four of its nearest neighbours are higher, up to Mullach nan Coirean at 939.3 m. Only 20 of the 737 hills profiled in Scotland are lower. It shares its height of 616 m with Great Borne and Leenaun Hill. It is the lowest of the 30 register hills in the Fort William to Loch Treig & Loch Leven region, where Ben Nevis is highest. It is 249.7 m below the average height of the 427 register hills in Highland. The summit is marked by a trig point.