 The mountain's lower northern slopes are covered by the coniferous woodland of the Nevis Forest.As already mentioned, Mullach nan Coirean is often ascended in conjunction with the neighbouring Stob Bàn; this walk starts at Achriabhach and climbs Coire a' Mhusgain before crossing Stob Bàn to reach Mullach nan Coirean.A direct ascent of the mountain starts at the same place and goes through the Nevis Forest to reach Mullach nan Coirean’s north east ridge which is ascended to the summit.