 A fourth corrie, Coire Carach stands on the mountain's southern slopes.Mullach nan Coirean has four ridges radiating from its summit.The eastern ridge links to the adjoining Munro of Stob Bàn which is three kilometres away, whilst the south western ridge links to the subsidiary top of Meall a' Chaorainn (910 metres) before descending steeply to the glen of the River Kiachnish.