Cul Mor is a Corbett of 849.7 m in Highland. In the database's Lochinver to Ullapool region it is the highest of eight register hills, above Canisp and six others.
Its drop of 652 m is 77% of its height: the col linking it to higher ground is only 198 m above sea level. It overtops all four of its nearest neighbours; the tallest of them, Cul Beag, reaches 769.4 m. The higher hill nearest to it, Conival, is a Munro, 16.2 km to the north-east. The summit is marked by a trig point, inside a shelter.