Mangerton Mountain is a Hewitt of 838.2 m in Kerry. Only nine of the register's Ireland hills are higher.
In the database's Shehy Mountains region it is the highest of five register hills, above Knockboy and three others. The key col lies 17.8 km away to the west, at 255 m. It overtops all four of its nearest neighbours; the tallest of them, Purple Mountain, reaches 832 m. It stands 183.2 m above its nearest neighbour, Crohane, 7.2 km to the east. It shares its height of 838.2 m with Sgurr Gaorsaic. Its nearest higher summit, The Big Gun (939.9 m, 14.4 km west), is a listed top not profiled here. The summit is marked by a trig point.
