Ben Alder is a Munro of 1,148 m in Highland. Its drop of 783 m is the 40th greatest of the 1,140 hills here.
In the database's Loch Treig to Loch Ericht region it is the highest of 19 register hills, above Geal-charn (Highland, NN469746) and 17 others. The key col lies 23.9 km away to the west, at 365 m. It overtops all four of its nearest neighbours; the tallest of them, Geal-charn (Highland, NN469746), reaches 1,131.4 m. It is 282.3 m above the average height of the 427 register hills in Highland. The summit is marked by a trig point.