Mullach Nan Coirean is the most westerly of the Mamores. It is a bulky mountain with its summit being the main intersection of 3 ridges. Its long 4km SE ridge connects to neighbouring Munro Stob Ban by winding its way round several corries. Its northern ridge leads down gently to Glen Nevis from where it is normally ascended. Mullach Nan Coirean is surrounded by several corries of which the finest is Coire Dearg on its eastern face.
As mentioned previously Mullach Nan Coirean is normally climbed in conjunction with Stob Ban to the east. Stob Ban is much less bulky and has a distinctive conical shape. These two Munros like the entire Mamore region make a fantastic outing, especially if combined.
The summit ridges of Mullach Nan Coirean are topped with granite rock giving the Munro a distinctive red colour instantly recognisable from other peaks in the area.
Parking is available at a car park at the western end of Glen Nevis to the north of Mullach nan Coirean with a short but pleasant walk through the Glen to reach the hills northern ridge, this being the route most people take.