The route starts from the Cosmiques hut, not far from the Col du Midi.
From the Col we start climbing north, along the normal route of the first of the three "Mont Blancs”. After passing a first section with many seracs, the climb continues to the right reaching the shoulder of Mont Blanc du Tacul. On the opposite slope one crosses reaching the Col Maudit.
From here, the climb continues crossing the large glacial basin of Mont Maudit and by overcoming a small but steep slope of about 50° we will reach Col du Mont Maudit (4345 m). Once past the Col, we lose some altitude to reach the Col de la Brenva. After a final steep ascent of the Mur de la Co?te, we will stand on the summit.
The descent can be made by the same route or by crossing to the Vallot Hut and the Dome du Gouter.