Mont Blanc du Tacul : Devils ridge (Arête du Diable)

Mont Blanc du Tacul : Devils ridge (Arête du Diable)


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Associated waypoints

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  • Swisstopo - 46 - Val de Bagnes
  • Swisstopo - 292 - Courmayeur
  • IGN - 3531ET - St-Gervais les Bains - Massif du Mont Blanc
  • IGN - 3630OT - Chamonix - Massif du Mont Blanc
  • Escursionista - ESC01 - Monte Bianco, Courmayeur



route_types: traverse
durations: 1 day(s)
rock_types: granit
configuration: edge

quality: medium


5c > 5b

    IV    P3 


elevation min/max : 3200 m / 4248 m

height_diff_up: 1200 m

height_diff_difficulties: 600 m

difficulties_height: 3650 m


glacier_gear: glacier_safety_gear


This route climbs Mont Blanc du Tacul from the Col du Diable via Corne du Diable, the Pointe Chaubert, the Pointe Médiane, the Pointe Carmen and the Isolée, all above 4000m.

Mont Blanc du Tacul - S face
Mont Blanc du Tacul - S face


Leave from the Col du Midi, (Cosmiques Hut) or from the Torino hut, (shorter).


Climb up to the Col du Diable

Several routes are possible:
1. SW couloir (the classic route)
2. Macho couloir (AD)
3. Chéré couloir (D/500m)

Traverse of the Aiguilles du Diable

  • Go around the Corne du Diable on the left to reach the “Chaubert” gap, (Possible to climb the Corne du Diable (3b, 1 abseil)
  • Climb the pointe Chaubert by its E ridge, slab (5a). Descend the NW face to the E notch of the “Médiane” gap in 2×30 m abseils and get to the W notch by bypassing a pinnacle to the N.
  • Climb the pointe Médiane via a corner of 40m (5b). It is possible to leave the corner to the right after 15m to reach the E ridge.
  • Traverse the pointe Médiane and get to the “Carmen” gap by a 30m abseil.
  • Climb the pointe Carmen by some cracks (20m/4b, often verglaced), to the right of the E ridge. Go around the first rock horn and climb the second one. Make two abseils, (30m and 25m) to the “Diable” gap.
  • The ascension of the pointe Isolée is the crux of the traverse but can be avoided. To climb it, first descend several metres down its NE face. Climb up towards an overhanging flake of rock, which you turn on the left (5c) and reach a platform by a short corner. Go to the summit. Descend from the Isolée by one abseil.
  • Continue along the crest of the ridge. At a step, climb to the right, then to the left to reach a snow ridge, which leads to the summit.


By the normal route (N face)


  • The climbing for the most part is at 4c but you need to be climbing at a higher standard to feel comfortable.
  • A long, demanding route above 4000m; you need to be acclimatized.

Sensitive areas
There are sensitive areas on this route. Please refer to the map.


  • Ice axe (+ 2nd for the bergschrund,) crampons,
  • 2×50 m rope,
  • Small selection of friends and nuts,
  • 5 quickdraws, large slings.


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