Stob Bàn lies south of the main Grey Corries ridge, connected to it and the highest mountain of the group, Stob Choire Claurigh, by an unnamed col with a height of 800 metres, this col has a small lochan also unnamed lying within it. Stob Bàn's conical shape is formed by three distinct ridges. The north eastern ridge drops to the valley of the Allt na Lairige which flows southerly into Loch Treig. The south western ridge is gentle in gradient dropping down to a col at 750 metres before rising to the subsidiary summit of Meall a' Bhuirich (841 metres) which stands two kilometres from the main summit. The northern ridge is steep and connects to the Munro of Stob Choire Claurigh with rough scree underfoot with some care needed by walkers traversing between the two mountains.