Mont Blanc du Tacul (4,248 m) is a mountain in the Mont Blanc massif of the French Alps situated midway between the Aiguille du Midi and Mont Blanc.The official first ascent of Mont Blanc du Tacul was by a guideless party comprising Charles Hudson, Edward John Stevenson, Christopher and James Grenville Smith, E. S. Kennedy, Charles Ainslie and G. C. Joad on 8 August 1855.